Human beings are exquisitely sensitive to their environment. Although humans are flexible, environmental signals are markedly altered in the modern world and can be disorienting, possibly contributing to depression. Humans have co-evolved with various microorganisms which may have had an immunologic effect on stabilizing our immune system. While sanitation and clean drinking water are critical to survival, the over sterilization of our environment may play a role in modulating the human immune system. In this clip, Dr. Charles Raison highlights how ancient practices such as heat exposure, long-distance running, and fasting may promote well-being in the modern world. This clip...
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