Nutrition, exercise and sleep are the key components of optimal health. A lack of quality sleep can affect your physical performance; being sleep deprived could cause you to overeat or drive like you're under the influence. Dr. Craig Heller, a professor at Stanford University and an advisor for EightSleep, discusses the biological reasons of why the body needs sleep and offers suggestions for how you can achieve a great night's sleep every night. This is a fascinating discussion about the science of sleep.

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