Thanks to the University of Minnesota for sponsoring this video!   Because exercise isn't essential for short-term survival, we don't exercise enough, so we need to reincorporate purposeful physical activity into our lives.   Thanks also to our Patreon patrons and our YouTube members. ___________________________________________ To learn more, start your googling with these keywords:  Physical activity - any bodily movement produced by the contraction of skeletal muscle that increases energy expenditure above a basal levelExercise - a form of physical activity that is planned, structured, repetitive, and performed (primarily) with the goal of improving health or fitnessRecommended levels of physical activity (USA) - 150 minutes moderate-intensity or 75 minutes vigorous-intensity aerobic physical activity per week, or an equivalent combination, and muscle-strengthening activities at least 2 days / weekEvolutionary medicine - a field that uses evolutionary theory & data to better understand (the origins of) health & diseaseMismatch conditions - health conditions that are more prevalent or severe today than in the past because the body is inadequately or insufficiently adapted to modern environmental conditions (likely including: cavities, type 2 diabetes, heart disease, osteoporosis) ___________________________________________ If you liked this week’s video, you might also like:  Forget Exercise. For Better Health, We Need Better Cities - Magazine article about why exercise is hard - an individual level, psychology is involved, too: Americans aren’t getting the message about exercising more & sitting less - What healthy living and fixing climate change have in common - The wonder drug that's free - to live to be 100+ (TED Talk) - _________________________________________ Subscribe to MinuteEarth on YouTube: Support us on Patreon: And visit our website:   Say hello on Facebook: And Twitter:   And download our videos on itunes: ___________________________________________ Credits (and Twitter handles): Script Writer, Editor and Video Narrator: Alex Reich (@alexhreich) Video Illustrator: Arcadi Garcia (@garirius) Video Director: David Goldenberg (@dgoldenberg) With Contributions From: Henry Reich, Kate Yoshida, Ever Salazar, Peter Reich, Julián Gómez, Sarah Berman  Music by: Nathaniel Schroeder:   ___________________________________________   References: Booth, F. W., et al. 2017. Role of inactivity in chronic diseases: evolutionary insight and pathophysiological mechanisms. Physiological reviews, 97(4), 1351-1402., D., et al. 2016. The economic burden of physical inactivity: a global analysis of major non-communicable diseases. The Lancet, 388(10051), 1311-1324., M. D., et al. 2013. Heritability of objectively assessed daily physical activity and sedentary behavior. The American journal of clinical nutrition, 98(5), 1317-1325., I. M., et al. 2012. Effect of physical inactivity on major non-communicable diseases worldwide: an analysis of burden of disease and life expectancy. The Lancet, 380(9838), 219-229., H. H., et al. 2016. The exercise–affect–adherence pathway: an evolutionary perspective. Frontiers in psychology, 7, 1285., B. A., personal communication. May 2019.Lewis, B. A., et al. 2014. A randomized trial examining a physical activity intervention for the prevention of postpartum depression: the healthy mom trial. Mental Health and Physical Activity, 7(1), 42-49., D. E. 2015. Is exercise really medicine? An evolutionary perspective. Current sports medicine reports, 14(4), 313-319., R. E., et al. 2018. Theories of physical activity behaviour change: A history and synthesis of approaches. Psychology of Sport and Exercise. Department of Health & Human Services. 2018. Physical Activity Guidelines for Americans, 2nd edition. Washington, DC. Department of Health & Human Services. 2018. 2018 Physical activity guidelines advisory committee scientific report. Washington, DC. 2019. Prevalence of insufficient physical activity. Accessed May 2019.