The largest sleep study ever conducted concludes that both sleeping too little and too much negatively impacts cognitive ability, regardless of age.

The amino acid alanine lowers blood glucose by activating an enzyme that increases energy production in cells during fasting and exercise, a study reveals.

The radial nerve is prone to injury, even from minor incidents, such as sleeping on the arm. Radial nerve injury is also common after breaking the arm. In this article, learn about other causes, as well as symptoms and treatments.