If humans can go weeks without eating, why do we eat 3 times a day?
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Relevant article that explains the cultural history of the three meals:
https://www.bbc.com/news/magazine-20243692
Interestingly, eating fewer meals (fasting) is actually beneficial for health and promotes longevity. Firstly, it reduces the risk of cardiovascular diseases and diabetes, since constantly eating messes with our insulin and fat storage. Secondly, it triggers the body’s autophagy mechanism which may reduce cancer risks and have various other health benefits:
http://my.clevelandclinic.org/health/articles/24058-autophagy
More research is still being done on fasting and its benefits but it has already been proven in mice. If you’re interested in how fasting is beneficial and why we SHOULDN’T eat 3 meals a day, check out this interview podcast of Dr David Sinclair who is a professor at the Harvard medical school and the director of Center for biology of aging research:
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