This is the major depressive disorder (MDD) module of the full PHQ. It is one of the most validated tools in mental health and can be a powerful tool to assist clinicians with diagnosing depression and monitoring treatment response. It is not a screening tool for depression but it is used to monitor the severity of depression and response to treatment. The nine items of the PHQ-9 are based directly on the nine diagnostic criteria for major depressive disorder in the DSM-IV. It scores each of the 9 DSM-IV criteria as "0" (not at all) to "3" (nearly every day). Total scores of 5, 10, 15, and 20 represent cut points for mild, moderate, moderately severe and severe depression, respectively . Full scale from 0-27, with higher score indicating more severe symptoms.

This is a brief instrument that was designed to assess the severity of both nighttime and daytime components of insomnia. There are seven questions and the total score is found by summing the answers to the seven questions. The total score is interpreted as follows: absence of insomnia (0-7); sub-threshold insomnia (8-14); moderate insomnia (15-21); and severe insomnia (22-28). The total score ranges from 0-28 where higher score indicates increased severity of insomnia.

This is a 9-item scale which measures severity of fatigue and its effect on a person's activities and lifestyle in patients with a variety of disorders. The items are scored on a 7 point scale with 1=strongly disagree and 7=strongly agree. Full scale from 9 - 63, with higher score indicating greater fatigue severity.

This is a self-rating questionnaire aimed at measuring an individuals' ability to "bounce back from stress". The possible full scale range on the BRS is from 1 (low resilience) to 5 (high resilience), with higher score indicating higher resilience. The scores can be interpreted as follows: 1.00-2.99= low resilience; 3.00-4.30= normal resilience; 4.31-5.00= high resilience.

SWLS is designed to measure global cognitive judgments of satisfaction with one's life. The scale usually requires only about one minute of a respondent's time. Life satisfaction is one factor in the more general construct of subjective well-being. The SWLS is a 7-point Likert style response scale. The full scale range is from 5-35, with a higher score indicating higher levels of life satisfaction. A score of 20 representing a neutral point on the scale. Scores between 5-9 indicate the respondent is extremely dissatisfied with life, whereas scores between 31-35 indicate the respondent is extremely satisfied.

This measures the degree of burnout. Within the survey 3 domains are evaluated: Emotional Exhaustion (EE), 9 questions; Depersonalization (DP), 5 questions; and Personal Accomplishment (PA), 8 questions. All MBI-HSS items are scored on a Likert scale ranging from "never"=0 to "daily"=6. Scores from within each domain are added up and participants are classified into tiers (High, Moderate or Low) per domain. A high score of EE (score of 27 or higher) or a high score of DP (total score of 10 or higher) is considered indicative of clinically significant burnout in medical trainees.

This assesses the degree to which you feel connected to others in social environments.The is a 20-item questionnaire that scales responses from 1 (strongly disagree to 6 (strongly agree). The items are summed with full range scale from 20 - 120; a higher score indicates more connectedness to others.

This is a self-reported measure to assess the momentary phenomenological experience of awe. 30-item instrument, each item scored on a 7-point scale: -3 (disagree strongly) to +3 (agree strongly). Full scale from 30 - 210, higher score indicates a stronger experience of awe.

This will be used to noninvasively measure heart rate (HR). Pulse oximetry is used to measure the oxygen level of the blood by using infrared light. The device will be placed on the participant's finger. The normal range for resting heart rate is between 60-100 beats per minute.

This will be used to noninvasively measure oxygen saturation (pO2). Pulse oximetry is used to measure the oxygen level of the blood by using infrared light. The device will be placed on the participant's finger. The normal range for oxygen saturation is 89-100%.

This will be used to measure blood pressure. The normal level for systolic blood pressure is less than 120 mmHg. The normal level for diastolic blood pressure is less than 80 mmHg.

This is one of the most sensitive measures for emotional arousal. Galvanic Skin Response originates from the autonomic activation of sweat glands in the skin. The sweating on hands and feet is triggered by emotional stimulation: Whenever a person is emotionally aroused, the GSR data shows distinctive patterns that are visible with bare eyes and that can be quantified statistically. A GSR device containing two electrodes will be placed on the skin of the participant during the Recharge Room experience. GSR is measured in the unit of microSiemens. Measurements normal range: 0-15 microSiemens.

Quantitative electroencephalography (EEG) power spectrum density. Mean power is the percentage of change between PRE and POST of the average power along time in each frequency band and electrode.

Quantitative electroencephalography (EEG) coherence. Mean coherence is the percentage of change between PRE and POST of the mean coherence in each band and each electrode, defined as the average coherence of this electrode with all the other ones.

Quantitative electroencephalography (EEG) frequency band power. Mean frequency is the percentage of change between PRE and POST of the mean frequency in each band and electrode, defined as the mean frequency of the power spectrum weighted over that band.