For centuries, the nature of a fever — and whether it's good or bad — has been hotly contested. In ancient Greece, the physician Hippocrates thought that fever had useful qualities, and could cook an ...

Sugar metabolism refers to the process by which the body breaks down carbohydrates into sugars, including glucose and fructose. The body uses these sugars as a source of energy. The body metabolizes ...

The heart is the body's hardest-working muscle. Whether you're awake or asleep, or exercising or resting, your heart is always at work. It pumps blood through arteries to deliver oxygen to organs and ...