The students level of distress will be assessed through the Kessler Psychological Distress Scale (KPDS) questionnaire ranging from 10 (low) to 50 (extreme). The measures will be done at different time frame:

1. Pre-interventional measure at week 1: before any involvement in the modules (for the control and interventional groups).

2. Post-interventional measure at week 16 : after the modules (for the control and interventional groups).

   • Change = (Week 16 score - Week 1 score)

The composite score will be the mean of two sub-scores :

1. A stress module specific score. Mean of the scores obtained at the three 100-mm VAS ranging from 0 (absolutely not) to 100 (completely) :

   • "Do you think the intervention has helped you to decrease your stress level?"
   • "Do you think the intervention allowed you to better manage the stressful events you encountered?"

2. A stress module general score. Mean of the scores obtained at the 100-mm VAS ranging from 0 (absolutely not) to 100 (completely) :

   • "Do you think the proposed goals were suitable for your daily life?"
   • "Do you think you can sustain the habit changes?" ○ These measures will be done at the session 3 of the stress module, i.e. at week 7.

The composite score will be the mean of two sub-scores :

1. A sleep module specific score. Mean of the scores obtained at the two 100-mm VAS ranging from 0 (absolutely not) to 100 (completely) :

   • "Do you think the module has helped you to improve your sleep?"
   • "Do you think the module has helped you to decrease your fatigue?"

2. A sleep module general score. Mean of the scores obtained at the two 100-mm VAS ranging from 0 (absolutely not) to 100 (completely) :

   • "Do you think the proposed goals were suitable for your daily life?"
   • "Do you think you can sustain the habit changes?" ○ These measures will be done at session 3 of the sleep module, i.e. at week 11.

The composite score will be the mean of two sub-scores :

1. A sedentary behaviors and physical activity module specific score. Mean of the scores obtained at the three 100-mm VAS ranging from 0 (absolutely not) to 100 (completely) :

   • "Do you think the module has helped you increase your level of physical fitness?")
   • "Do you think the module has helped you increase your level of physical activity?")
   • "Do you think the module has helped you decrease your level of sedentary behaviours?"

2. A sedentary behaviors and physical activity module general score. Mean of the scores obtained at the two 100-mm VAS ranging from 0 (absolutely not) to 100 (completely) :

   • "Do you think the proposed goals were suitable for your daily life?"
   • "Do you think you can sustain the habit changes?" ○ These measures will be done at session 3 of the physical activity module, i.e. at week 13.

The student's level of stress will be assessed through the PSS questionnaire ranging from 0 (none) to 40 (extreme). One score is assessed and can be classified as low, moderate and elevated stress. The measures will be done at different time frame:

1. Pre-interventional measure at week 1: before any involvement in the intervention (for the control and interventional groups).

2. During intervention : measures will be done at week 3, 5, 7 ( for the interventional group).

3. Post-interventional measure at week 16 : after the intervention (for the control and interventional groups).

   • Change = (Week 16 score - Week 1 score)

The student's level of fatigue will be assessed through the MFI questionnaire that covers various dimensions of fatigue, including general fatigue (9 to 45), mental fatigue (6 to 30), reduced motivation (2 to 10), and reduced activity (3 to 15). The measures will be done at different time frame:

1. Pre-interventional measure at week 1: before any involvement in the modules (for the control and interventional groups).

2. During intervention : measures will be done at week 7, 9, 11 (for the intervention group).

3. Post-interventional measure at week 16 : after the modules (for the control and interventional groups).

   • Change = (Week 16 score - Week 1 score)

The objective students' levels of physical activity and sedentary behavior will be accessed through the actimetry recordings. The sedentary time is the total duration of sedentary behavior, defined as periods of minimal movement or activity, measured in minutes/day.

The measure will be done at different time frame:

1. Pre-interventional measure at week 1: before any involvement in the modules (for the control and interventional groups).
2. Post-interventional measure at week 16 : after the modules (for the control and interventional groups) for a measuring period of 2 weeks.0 ○ Change = (Week 16 score - Week 1 score)

The students' coping strategies (social support, active resolution, positive thinking, and avoidance) will be assessed through the BCI questionnaire, each score ranging from 1 to 4; a high score indicating the behaviour was highly engaged. The measures will be done at different time frame:

1. Pre-interventional measure at week 1: before any involvement in the modules (for the control and interventional groups).

2. During intervention : measures will be done at week 3, 5, 7 (for the interventional group).

3. Post-interventional measure at week 16 : after the modules (for the control and interventional groups).

   • Change = (Week 16 score - Week 1 score)

The student's level of sleep troubles will be assessed through the PSQI score ranging from 0 (none) to 21 (extreme). This score classified the presence or absence of sleep troubles. It can be divided into eight sub-scores (i.e., sleep quality, sleep latency, time spent in bed, sleep time, habitual sleep efficiency, sleep disturbance, use of sleeping medication and daytime dysfunction).

The measure will be done at different time frame:

1. Pre-interventional measure at week 1: before any involvement in the modules (for the control and interventional groups).

2. During intervention : measures will be done at week 7, 9, 11 (for the interventional group).

3. Post-interventional measure at week 16 : after the modules (for the control and interventional groups).

   • Change = (Week 16 score - Week 1 score)

The objective students' levels of physical activity and sedentary behavior will be accessed through the actimetry recordings. MVPA refers to physical activities that require moderate to high levels of effort and significantly increase heart rate and breathing. These activities contribute to improved cardiovascular health, fitness, and overall well-being. MVPA encompasses a range of activities that are more intense than sedentary behaviors but less intense than vigorous activities. MVPA is measured in minutes/day. The measure will be done at different time frame:

1. Pre-interventional measure at week 1: before any involvement in the modules (for the control and interventional groups).
2. Post-interventional measure at week 16 : after the modules (for the control a

The student's level of physiological stress will be assessed through the RMSSD, an HRV marker. RMSSD is the most commonly measured form of HRV, it calculates the difference between successive inter-beat-intervals (IBI) in ms, squares these values and takes the root of the mean. The measures will be done at different time frame:

1. Pre-interventional measure at week 1: before any involvement in the modules (for the control and interventional groups).
2. Post-interventional measure at week 16 : after the modules (for the control and interventional groups).
3. The measure will be done every 2 weeks from February to July in the intervention group, i.e. at week 1, 3, 5, 7, 9, 11, 13, 16 ○ Change = (Week 16 score - Week 1 score)

The objective students basal level of sleep will be accessed through the actimetry recordings.The sleep regularity index is a measure that evaluates the consistency of an individual's sleep habits over a given period. It takes into account the regularity of bedtime and wake-up times on a daily basis. The higher the sleep regularity index, the more consistent and regular the individual's sleep habits are considered to be. The measure will be done at different time frame:

1. Pre-interventional measure at week 1: before any involvement in the modules (for the control and interventional groups).

2. Post-interventional measure at week 16 : after the modules (for the control and interventional groups) for a measuring period of 2 weeks.

   • Change = (Week 16 score - Week 1 score)

The student's level of physical fitness will be assessed through a cardiorespiratory endurance test (modified VAMEVAL). During this test, the velocity at maximal aerobic (VMA) is the maximum speed (velocity) reached where the individual can still maintain aerobic metabolism without transitioning into anaerobic metabolism. VO2max refers to the maximum rate of oxygen consumption during intense exercise, typically measured in milliliters of oxygen per kilogram of body weight per minute (ml/kg/min). It is a key indicator of an individual's cardiovascular fitness and aerobic endurance. The VO2max was estimated as 3.5 times VMA. The VO2max through the endurance will be recorded at different time frame:

1. Pre-interventional measure at week 1: before any involvement in the modules (for the control and interventional groups).

2. Post-interventional measure at week 16 : after the modules (for the control and interventional groups).

   • Change = (Week 16 score - Week 1 score)

The students quantity of stressors will be assessed on a 100-mm Visual Analogue Scale (VAS: "In the past two weeks, how many stressful situations have you encountered?") ranging from 0 (maximum/extreme) to 100 (zero). The measure will be done in the intervention group, i.e. at week 3, 5, 7.

The emotional valence associated of the students stress level will be assessed on a 100-mm Visual Analogue Scale (VAS: "Over the past two weeks, how would you characterize your stress?") ranging from 0 (very negative feelings) to 100 (very positive feelings). The measure will be done in the intervention group, i.e. at week 3, 5, 7.

The students management of stressful situations will be assessed on a 100-mm Visual Analogue Scale (VAS: "Over the past two weeks, how did you manage your stressful situations?") ranging from 0 (very bad stress coping) to 100 (excellent stress coping). The measure will be done in the intervention group, i.e. at week 3, 5, 7.

The student's level of stress will be assessed on a 100-mm Visual Analogue Scale (VAS: "Over the past two weeks, how would you characterize your stress level?") ranging from 0 (total absence of stress) to 100 (stress maximal). The measure will be done in the intervention group, i.e. at week 3, 5, 7.

The students' level of sleep quality will be assessed on a 100-mm Visual Analogue Scale (VAS: "Over the past two weeks, how would you characterize your sleep?") ranging from 0 (the worst quality of sleep possible) to 100 (the best quality of sleep possible). The measure will be done in the intervention group, i.e. at week 7, 9, 11.

The student level of sleep quantity will be assessed on a 100-mm Visual Analogue Scale (VAS: "Over the past two weeks, how would you characterize your sleep?") ranging from 0 (quantity of sleep largely insufficient) to 100 (quantity of sleep largely sufficient). The measure will be done in the intervention group, i.e. at week 7, 9, 11.

The student's level of fatigue will be assessed on a 100-mm Visual Analogue Scale (VAS: "Over the past two weeks, how would you characterize your physical and mental fatigue levels ?") ranging from 0 (extreme fatigue) to 100 (absence total of fatigue). The measure will be done in the intervention group, i.e. at week 7, 9, 11.

The students' level of physical fitness will be assessed on a 100-mm Visual Analogue Scale (VAS: "Over the past two weeks, how would you characterize your level of physical fitness?") ranging from 0 (bad shape) to 100 (best shape ever). The measure will be done every 2 weeks in the intervention group, i.e. at week 9, 11, 13.

The student's level of physical activity will be assessed on a 100-mm Visual Analogue Scale (VAS: "Over the past two weeks, how would you characterize your level of physical activity?") ranging from 0 (completely inactive) to 100 (extremely active). The measure will be done every 2 weeks in the intervention group, i.e. at week 9, 11, 13.

The students level of sedentary behaviors will be assessed on a 100-mm Visual Analogue Scale (VAS: "Over the past two weeks, how would you characterize your level of sedentary behaviors?") ranging from 0 (extremely sedentary) to 100 (absolutely not sedentary). The measure will be done every 2 weeks in the intervention group, i.e. at week 9, 11, 13.

The student's level of diurnal sleepiness will be assessed through the Epworth Sleepiness scale ranging from 0 (none) to 24 (extreme). The measures will be done at different time frame:

1. Pre-interventional measure at week 1: before any involvement in the modules (for the control and interventional groups).

2. Post-interventional measure at week 16 : after the modules (for the control and interventional groups).

   • Change = (Week 16 score - Week 1 score)

The student level of physical activity will be assessed through the RAPA questionnaire. Level of physical activity, including aerobic, strength, and flexibility is self-assessed. Scores are expressed in hours per day for week and weekend days. The measures will be done at different time frame:

1. Pre-interventional measure at week 1: before any involvement in the modules (for the control and interventional groups).

2. During the intervention : measures will be done at week 9, 11, 13 (for the interventional group).

3. Post-interventional measure at week 16 : after the modules (for the control and interventional groups).

   • Change = (Week 16 score - Week 1 score)

The students level of physical activity and sedentary will be assessed through the Onaps-PAQ (National Observatory for Physical Activity and Sedentariness - Physical Activity Questionnaires) during a typical week. Scores are expressed in hours per day for week and weekend days. The measures will be done at different time frame:

1. Pre-interventional measure at week 1: before any involvement in the modules (for the control and interventional groups).

2. During the intervention : measures will be done at week 9, 11, 13 (for the interventional group).

3. Post-interventional measure at week 16 : after the modules (for the control and interventional groups).

   • Change = (Week 16 score - Week 1 score)

The students level of loneliness will be assessed through the Loneliness scale (ESUL) questionnaire ranging from 20 (low) to 80 (extreme). The measures will be done at different time frame:

1. Pre-interventional measure at week 1: before any involvement in the modules (for the control and interventional groups).

2. Post-interventional measure at week 16 : after the modules (for the control and interventional groups).

   • Change = (Week 16 score - Week 1 score)

The students level of substances use will be assessed through the ASSIST-Lite (Alcohol, Smoking and Substance Involvement Screening Tool - Lite). questionnaire ranging from 20 (low) 80 (extreme). The measures will be done at different time frame:

1. Pre-interventional measure at week 1: before any involvement in the modules (for the control and interventional groups).

2. Post-interventional measure at week 16 : after the modules (for the control and interventional groups).

   • Change = (Week 16 score - Week 1 score)

The student's level of physiological stress will be assessed through cardiac coherence, an HRV marker. The measures will be done at different time frame:

1. Pre-interventional measure at week 1: before any involvement in the modules (for the control and interventional groups).
2. Post-interventional measure at week 16 : after the modules (for the control and interventional groups).
3. The measure will be done every 2 weeks from February to July in the intervention group, i.e. at week 1, 3, 5, 7, 9, 11, 13, 16 ○ Change = (Week 16 score - Week 1 score)

The student's level of physiological stress will be assessed through the SDNN score, an HRV marker. SDNN is the standard deviation of the inter-beat-intervals (IBI) measured in ms, NN means "normal" beats, i.e, removing abnormal or false beats.The measures will be done at different time frame:

1. Pre-interventional measure at week 1: before any involvement in the modules (for the control and interventional groups).
2. Post-interventional measure at week 16 : after the modules (for the control and interventional groups).
3. The measure will be done every 2 weeks from February to July in the intervention group, i.e. at week 1, 3, 5, 7, 9, 11, 13, 16 ○ Change = (Week 16 score - Week 1 score)

The student's level of physiological stress will be assessed through the pnn50%, an HRV marker. NN50 is the Number of pairs of successive intervals that differ by greater than 50ms. And pNN50 which is more typically used is the proportion of NN50 over all N-N intervals in a sample, expressed as a percentage.The measures will be done at different time frame:

1. Pre-interventional measure at week 1: before any involvement in the modules (for the control and interventional groups).
2. Post-interventional measure at week 16 : after the modules (for the control and interventional groups).
3. The measure will be done every 2 weeks from February to July in the intervention group, i.e. at week 1, 3, 5, 7, 9, 11, 13, 16 ○ Change = (Week 16 score - Week 1 score)

The students level of physiological stress will be assessed through the LF/HF ratio, an HRV marker. The HF band is typically correlated with RMSSD and NN50, lower HF power is associated with stress and anxiety. It is primarily associated with activity in the parasympathetic nervous system. The LF band is typically associated with the sympathetic nervous system and the HF/LF ratio is often used as a measure of sympathetic-parasympathetic balance in the nervous system. The measures will be done at different time frame:

1. Pre-interventional measure at week 1: before any involvement in the modules (for the control and interventional groups).
2. Post-interventional measure at week 16 : after the modules (for the control and interventional groups).
3. The measure will be done every 2 weeks from February to July in the intervention group, i.e. at week 1, 3, 5, 7, 9, 11, 13, 16 ○ Change = (Week 16 score - Week 1 score)

The objective students level of sleep will be accessed through the actimetry recordings.The time in bed (in hours/day) refers to the total duration between the time an individual gets into bed with the intention of sleeping and the time he/she get out of bed. It includes both the time spent asleep (total sleep time) and any periods of wakefulness while in bed. Essentially, it represents the total time allocated for sleep, regardless of whether the individual is actually sleeping during that time. The measure will be done at different time frames:

1. Pre-interventional measure at week 1: before any involvement in the modules (for the control and interventional groups) for a measuring period of 2 weeks.

2. Post-interventional measure at week 16 : after the modules (for the control and interventional groups) for a measuring period of 2 weeks.

   • Change = (Week 16 score - Week 1 score)

The objective students level of sleep will be accessed through the actimetry recordings. The total duration of sleep is obtained during a specified period, measured in hours/day. It represents the overall quantity of sleep obtained by an individual.The measure will be done at different time frame:

1. Pre-interventional measure at week 1: before any involvement in the modules (for the control and interventional groups).

2. Post-interventional measure at week 16 : after the modules (for the control and interventional groups) for a measuring period of 2 weeks.

   • Change = (Week 16 score - Week 1 score)

The objective students' level of sleep will be accessed through the actimetry recordings.The sleep efficiency is the ratio of total sleep time to the total time spent in bed, expressed as a percentage. It reflects how effectively one is sleeping during the time allotted for sleep. The measure will be done at different time frame:

1. Pre-interventional measure at week 1: before any involvement in the modules (for the control and interventional groups).

2. Post-interventional measure at week 16 : after the modules (for the control and interventional groups) for a measuring period of 2 weeks.

   • Change = (Week 16 score - Week 1 score)

The objective students' level of sleep will be accessed through the actimetry recordings. The sleep onset latency is the amount of time it takes for an individual to fall asleep after getting into bed, measured from the time the lights are turned off until sleep onset, reported in minutes.The measure will be done at different time frame:

1. Pre-interventional measure at week 1: before any involvement in the modules (for the control and interventional groups).

2. Post-interventional measure at week 16 : after the modules (for the control and interventional groups) for a measuring period of 2 weeks.

   • Change = (Week 16 score - Week 1 score)

The objective students' level of sleep will be accessed through the actimetry recordings.The wake after sleep onset measures the total amount of time spent awake after initially falling asleep, reported in minutes. It reflects the disruptions in sleep continuity. The measure will be done at different time frame:

1. Pre-interventional measure at week 1: before any involvement in the modules (for the control and interventional groups).

2. Post-interventional measure at week 16 : after the modules (for the control and interventional groups) for a measuring period of 2 weeks.

   • Change = (Week 16 score - Week 1 score)

The objective students' level of sleep will be accessed through the actimetry recordings.The number of awakenings represents the frequency of brief awakenings during the sleep period. Each awakening may disrupt the continuity of sleep and impact sleep quality. The measure will be done at different time frame:

1. Pre-interventional measure at week 1: before any involvement in the modules (for the control and interventional groups).

2. Post-interventional measure at week 16 : after the modules (for the control and interventional groups) for a measuring period of 2 weeks.

   • Change = (Week 16 score - Week 1 score)

The objective students' level of sleep will be accessed through the actimetry recordings.The mid-sleep point refers to the midpoint of an individual's sleep period. It is calculated by finding the halfway point between the time of sleep onset (when the individual falls asleep) and the time of sleep offset (when the individual wakes up). The measure will be done at different time frame:

1. Pre-interventional measure at week 1: before any involvement in the modules (for the control and interventional groups).

2. Post-interventional measure at week 16 : after the modules (for the control and interventional groups) for a measuring period of 2 weeks.

   • Change = (Week 16 score - Week 1 score)

The objective students' basal level of sleep will be accessed through the actimetry recordings. The bedtime is the time at which an individual goes to bed with the intention of sleeping.The measure will be done at different time frame:

1. Pre-interventional measure at week 1: before any involvement in the modules (for the control and interventional groups).

2. Post-interventional measure at week 16 : after the modules (for the control and interventional groups) for a measuring period of 2 weeks.

   • Change = (Week 16 score - Week 1 score)

The objective students basal level of sleep will be accessed through the actimetry recordings.The sleep onset time refers to the time at which an individual falls asleep after initially getting into bed with the intention of sleeping, measured in minutes. The measure will be done at different time frame:

1. Pre-interventional measure at week 1: before any involvement in the modules (for the control and interventional groups).

2. Post-interventional measure at week 16 : after the modules (for the control and interventional groups) for a measuring period of 2 weeks.

   • Change = (Week 16 score - Week 1 score)

The objective students' basal level of sleep will be accessed through the actimetry recordings. The sleep inertia refers to the periods between wake-up time and get-up time, measured in minutes. The measure will be done at different time frame:

1. Pre-interventional measure at week 1: before any involvement in the modules (for the control and interventional groups).

2. Post-interventional measure at week 16 : after the modules (for the control and interventional groups) for a measuring period of 2 weeks.

   • Change = (Week 16 score - Week 1 score)

The objective students' basal level of sleep will be accessed through the actimetry recordings. The wake-up time refers to the time at which an individual awakens from sleep in the morning. The measure will be done at different time frame:

1. Pre-interventional measure at week 1: before any involvement in the modules (for the control and interventional groups).

2. Post-interventional measure at week 16 : after the modules (for the control and interventional groups) for a measuring period of 2 weeks.

   • Change = (Week 16 score - Week 1 score)

The objective students' levels of physical activity and sedentary behavior will be accessed through the actimetry recordings. Light physical activity refers to any activity that requires minimal effort and only slightly elevated heart rate and breathing, measured in minutes/day. It involves movement that is more than sedentary behavior but does not reach the intensity level of moderate-to-vigorous physical activity (MVPA). Light physical activities are typically those that can be performed during daily tasks or leisurely pursuits and do not typically lead to significant sweating or increased breathing rate.The measure will be done at different time frame:

1. Pre-interventional measure at week 1: before any involvement in the modules (for the control and interventional groups).
2. Post

The objective students' levels of physical activity and sedentary behavior will be accessed through the actimetry recordings. Sedentary breaks refer to short periods of time during which individuals interrupt prolonged sitting or sedentary behavior by engaging in light physical activity or standing.

The measure will be done at different time frame:

1. Pre-interventional measure at week 1: before any involvement in the modules (for the control and interventional groups).

2. Post-interventional measure at week 16 : after the modules (for the control and interventional groups) for a measuring period of 2 weeks.

   • Change = (Week 16 score - Week 1 score)

The objective students' levels of physical activity and sedentary behavior will be accessed through the actimetry recordings. Prolonged sedentary bouts refer to extended periods of time during which individuals engage in minimal physical activity or remain in a seated or reclined position without interruption. These bouts typically last for prolonged durations, measured in minutes/day, often exceeding 30 minutes or more at a time.The measure will be done at different time frame:

1. Pre-interventional measure at week 1: before any involvement in the modules (for the control and interventional groups).

2. Post-interventional measure at week 16 : after the modules (for the control and interventional groups) for a measuring period of 2 weeks.

   • Change = (Week 16 score - Week 1 score)

The student's level of physical fitness will be assessed through a muscular strength test.

The maximum isometric strength of the quadriceps during the strength test will be done at different time frame:

1. Pre-interventional measure at week 1: before any involvement in the modules (for the control and interventional groups).

2. Post-interventional measure at week 16 : after the modules (for the control and interventional groups).

   • Change = (Week 16 score - Week 1 score)

The squat jump is plyometric exercise in which a person bends their knees to lower their body into a squat position, then performs an explosive jump upwards by extending the hips, knees, and ankles simultaneously. During this exercise, the height of jump will be measured (in cm).

The high of jump will be done at different time frame:

1. Pre-interventional measure at week 1: before any involvement in the modules (for the control and interventional groups).

2. Post-interventional measure at week 16 : after the modules (for the control and interventional groups).

   • Change = (Week 16 score - Week 1 score)

The student's level of physical fitness will be assessed through a power test, a vertical jump. During this exercise, the time of flight will be measured (in seconds).

The time of flight will be done at different time frame:

1. Pre-interventional measure at week 1: before any involvement in the modules (for the control and interventional groups).

2. Post-interventional measure at week 16 : after the modules (for the control and interventional groups).

   • Change = (Week 16 score - Week 1 score)

The student's level of physical fitness will be assessed through a power test, a vertical jump. During this exercise, the relative power can be estimated. The relative power will be done at different time frame:

1. Pre-interventional measure at week 1: before any involvement in the modules (for the control and interventional groups).

2. Post-interventional measure at week 16 : after the modules (for the control and interventional groups).

   • Change = (Week 16 score - Week 1 score)

The student's level of physical fitness will be assessed through a cardiorespiratory endurance test (modified VAMEVAL). The speed through the endurance will be recorded at different time frame:

1. Pre-interventional measure at week 1: before any involvement in the modules (for the control and interventional groups).

2. Post-interventional measure at week 16 : after the modules (for the control and interventional groups).

   • Change = (Week 16 score - Week 1 score)

The student's level of physical fitness will be assessed through a cardiorespiratory endurance test (modified VAMEVAL). The heart rate will be measured at three moments: maximum, submaximal, at 1 minute, and 3 minutes of recovery. The measure will be recorded at different time frame:

1. Pre-interventional measure at week 1: before any involvement in the modules (for the control and interventional groups).

2. Post-interventional measure at week 16 : after the modules (for the control and interventional groups).

   • Change = (Week 16 score - Week 1 score)

The student's level of flexibility will be assessed through the Sit and Reach Test. During this exercise, the flexibility of the lower back and hamstrings can be measured. The flexibility of the lower back and hamstrings will be done (in cm) at different time frame:

1. Pre-interventional measure at week 1: before any involvement in the modules (for the control and interventional groups).

2. Post-interventional measure at week 16 : after the modules (for the control and interventional groups).

   • Change = (Week 16 score - Week 1 score)

The student's level of flexibility will be assessed through the Shoulder Flexibility Test. During this exercise, the flexibility of the shoulders can be measured. The flexibility of the shoulders will be done (in cm) at different time frame:

1. Pre-interventional measure at week 1: before any involvement in the modules (for the control and interventional groups).

2. Post-interventional measure at week 16 : after the modules (for the control and interventional groups).

   • Change = (Week 16 score - Week 1 score)

The BMI is a measure used to assess an individual's body weight in relation to their height. It's calculated by dividing a person's weight in kilograms by the square of their height in meters (BMI = weight in kilograms / (height in meters)²). BMI provides a general indication of whether a person's weight falls within a healthy range relative to their height. Here's how BMI categories are typically interpreted:

Underweight: BMI less than 18.5 Normal weight: BMI between 18.5 and 24.9 Overweight: BMI between 25 and 29.9 Obesity: BMI 30 or greater

The measure will be recorded at different time frame:

1. Pre-interventional measure at week 1: before any involvement in the modules (for the control and interventional groups).

2. Post-interventional measure at week 16 : after the modules (for the control and interventional groups).

   • Change = (Week 16 score - Week 1 score)

"Would you recommend a friend to participate in PROMESS-group?" The answer may be YES or NO. This will provide information on students' willingness to recommend the project and may represent their overall perception and appreciation of the project. This measure will be done during the post-interventional period at week 16 (for the control and interventional groups).

"Health behavior refers to all individual actions and habits that have an impact on health, including lifestyle choices, hygiene practices, diets, physical activity, sleep, use of substances such as tobacco and alcohol, stress management and compliance with medical recommendations. These behaviors play a crucial role in disease prevention, health promotion and overall well-being. Based on this definition, do you think that your participation in the PROMESS-group project has modified your health behaviors/actions?". The answer can be YES or NO.This measure will be done during the post-interventional period at week 16 (for the control and interventional groups).

If the student answers yes at the previous question ("Do you think that your participation in the PROMESS-group project has modified your health behaviors/actions?"), he/she will be asked: "For which behaviors do you think you have modified your habits/actions?". They may answer YES (positive changes), YES (negative change), NO (no change for this behavior) among a pre-established list of behaviors (stress, sleep, sedentary or physical activity behaviors). They may also declare additional different habits changes. This measure will be done during the post-interventional period at week 16 (for the control and interventional groups).

The quantity of stressors met by students during the last years will be assessed with the Holmes and Rahe Questionnaire inventory. One score is assessed and can be classified as low, medium and high risk of health degradation. This measure will be done during the pre-interventional period at week 1 (for the control and interventional groups).

The students personality traits (i.e. agreeableness, openness, consciousness, extraversion, neuroticism) will be assessed through the Big-5 questionnaire. Each score ranges from one to five. This measure will be done during the pre-interventional period at week 1 (for the control and interventional groups).

The students chronotype are assessed through the CSM. A total score can also be assessed (from 13 to 55). A score of 22 or less indicates an evening chronotype, a score above 44 indicates a morning chronotype, and scores in between receive an intermediate classification. This measure will be done during the pre-interventional period at week 1 (for the control and interventional groups).