When our body is well fed, it relaxes. Naturally, we want to shy away from danger, stress, pain, and especially from hunger, but this puts us in a constant state of relaxation, and our body isn't doing what it needs to in order to keep everything functioning at its peak.
David tells Joe about how our ancestors lived and how important it was for them to be hungry from time to time in order to look out for long-term survival needs. When we're hungry (but not malnourished or starving) we are able to think more clearly and perform at a higher level physically as well.
Fasting is a great way to help take care of our bodies and prevent the effects of aging. Watch the full video to learn more.