The participant will be provided an educational module entitled "Mommies can Eat and Exercise with No Stress" (MomEENS), in which the module will be delivered through a booklet and video. The MomEENS module consist of five key recommendations: 1. Eat healthy foods ;2. Eat foods rich in iron and folic acid; 3. Eat foods rich in omega-3 fatty acids; 4. Increase steps in a day and; 5. Increase body flexibility and strength. All the key recommendations will be explained in the booklet, while the video will provide full guidance on how to exercise during postpartum at home, explaining key recommendations 4 and 5. Face-to-face consultation with the participants will be held during baseline and 4th week to enhance the participation. Besides, Whatsapp and Facebook page group is developed as a step to enhance the compliance of participants. All the participants will be contacted once for every two weeks, lasting for about 5 to 10 minutes for each call to monitor the participant's progress.

The participants in the control group will be received advice on the standardised Malaysian food pyramid and be instructed to follow their usual standard care as suggested by their healthcare provider. Postpartum women in Malaysia typically attend postpartum healthcare visits with an exam on day 30 after childbirth but receive no other routine care following this appointment unless a specific health problem has been identified. Participants in the control group performed the same evaluations. They received the same incentives as those in the intervention group, but they did not receive any educational module and contact from the investigator during the 8 weeks follow-up.

This intervention involving behaviour modification, incorporates nutrition and physical activity modification. The intervention encourages participants to consume a healthy diet and active lifestyle during postpartum period. For nutrition modification, a general advice on healthy nutrition were given and several nutrients are highlighted which evidenced can reduce postpartum depression. While for physical activity, the mothers are encouraged to do exercise, targeting aerobic, flexibility, and strength type of exercise. The exercise protocol is progressive. During the first month, the participants will be advised to conduct flexibility and strength exercises for 8 repetitions (1 set), at least 3 days per week for both aerobic and flexibility exercise. While during the second month, participants are asked to increase repetitions and frequency of exercises, up to 16 repetitions (2 set) for each flexibility exercise, and conduct exercise at least 5 days per week.

The presence of depressive symptoms will be assessed using the Edinburgh Postnatal Depression Scale (EPDS). The EPDS is a 10-item self-administered questionnaire designed specifically to measure postpartum depression. All items will be rated on a 4-point Likert-type scale, with a total score ranging from 0-30. Categories of response are scored 0,1,2, and 3 based on increased symptom severity. EPDS can only be used for screening but not for the clinical diagnosis of depression. The Malay version of the scale was validated in the local setting with the cut off 11/12 was used to determine a woman at risk of having depressive symptoms. Score of ≥12 indicates the presence of postpartum depression whereas <12 indicates absence of postpartum depression.

The Perceived Stress Scale (PSS) was developed by Sheldon Cohen & Williamson (1988), designed to measure the degree to which circumstances of an individual are considered stressful via their feelings and thoughts in the past month. The item asked regarding the current levels of stress, unpredictable, uncontrollable, and overloaded events, unexpectedly occur during their lives. The PSS consist of 10 items, derived from 5-point Likert scale (0= never, 1= almost never, 2= sometimes, 3= fairly often, 4= very often). Four items that are positively stated (item 4,5,7, and 8) are scored reversely (0= very often, 1= fairy often, 2= sometimes, 3= almost never, 4= never). The total score is calculated from the sum of 10 items, whereas higher scores indicate higher levels of perceived stress. In this study, Malay version of PSS-10 is used to enable participants to understand the questions asked and to make the assessment more culturally appropriate.

The Postpartum Sleep Quality Scale (PSQS) consists of 14 item scale, designed to assess subjective sleep quality during postpartum periods. Two domains were developed from the PSQS: "Factor 1: Infant night care-related daytime dysfunction", and "Factor 2: Physical symptoms related sleep inefficiency". Factor 1 explained how having care of infants at night impacted the quality of postpartum woman's sleep and the ability to handle daytime activities. Factor 2 described the physiological factors underlying sleep and sleep inefficiency symptoms of a woman. The PSQS found to be a valid and reliable tool, as previous study had demonstrated PSQS have adequate internal consistency between the item (Cronbach's α= 0.88; Factor I α =0.89, Factor II α= 0.82).

A multiple pass 24-hour diet recall will be performed to assess the dietary intake of the mother. Multiple pass 24-hour diet recall found to maximise recall accuracy for quantitation, with the used of the following algorithm: The first pass encourages the respondent to freely report all food and drink consumption for the previous 24 hours without any interruption. In second pass, the researcher probes for greater details on the exact time, type and quantity of food and drink consumed, and in the final pass, the researcher reviews all food reported in order, prompting for omissions and clarifying the ambiguities. Nutrient analysis software, the Nutritionist Pro Diet Analysis, will be used to calculate the average nutrients intake, which is based on the Nutrient Composition of Malaysian Foods database and the U.S. Department of Agriculture (USDA) Foods database.