Many studies concerning health have been conducted to understand the relationship between sleep, diet, exercise, and psychological well-being.
Most demonstrate that fatty foods often cause depression, anxiety, and insomnia. So, at home or in the restaurant, stay away from fat and salt: a little bit is fine, too much is really bad!
Courneya, K. S. (2003). Randomized Controlled Trial of Exercise Training in Postmenopausal Breast Cancer Survivors: Cardiopulmonary and Quality of Life Outcomes. Journal of Clinical Oncology, 21(9), 1660–1668. doi:10.1200/JCO.2003.04.093 Fox, K. (1999).
The influence of physical activity on mental well-being. Public Health Nutrition 2(3a): 411-418. Fuligni, A. J., & Hardway, C. (2006).
Daily Variation in Adolescents’ Sleep, Activities, and Psychological Well-Being. Journal of Research on Adolescence, 16(3), 353–378. Hassmén, P., Koivula, N., & Uutela, A. (2000).
Physical Exercise and Psychological Well-Being: A Population Study in Finland.
Preventive Medicine, 30(1), 17–25. doi:10.1006/pmed.1999.0597 Smaldone, A., Honig, J. C., & Byrne, M. W. (2007).
Sleepless in America: Inadequate Sleep and Relationships to Health and Well-being of Our Nation’s Children. PEDIATRICS, 119(Supplement), S29–S37. doi:10.1542/peds.2006-2089F