Most people only find out their blood type when donating blood or when a medical emergency calls for it. Recent research suggests this biological marker may influence heart health. Multiple ...

Chemically, there are many different types of sugar. But for dietary purposes, there are only two kinds of sugars you need to concern yourself with: naturally occurring sugars and added sugars.

Psychoactive drugs are substances that affect the brain. The types range from heroin to caffeine. These substances can affect awareness, thoughts, mood, and behavior. Depending on the situation, the ...