Medications

On nutrition: Supplements for sleep

It's true that as we age, we don't sleep as well or as long. Why is that? Scientists say several changes occur with aging that disrupt our natural sleep cycle.

Health

Environmental factors predict risk of death: study

Along with high blood pressure, diabetes, and smoking, environmental factors such as air pollution are highly predictive of people's chances of dying, especially from heart attack and stroke, a new study shows.

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