Sleep deprivation affects every system in the body, from increasing risks of Alzheimer's and diabetes to impacting heart health and gut function. Getting seven and a half to eight hours of sleep nightly is essential, as the body uses this time to clear toxins through systems like the glymphatic system in the brain. Improving sleep by just one hour can increase testosterone and thyroid levels by up to 10% within a week, reduce daily caloric intake by 270 calories, and significantly improve mood, energy levels and cognitive function.

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