"Overweight" and "obese" are terms that people tend to use interchangeably. However, within a medical context, they mean different things. We take a look at what makes these words unique from one another.

COPD and Emphysema are both respiratory conditions, but how exactly are they related? We take a look at what binds these two serious diseases together.

While age spots aren't dangerous, they can be unsightly. We take a look at the fastest methods for getting rid of them.

Cardiac arrest is fatal more often than not. Is there any way to prevent this serious heart condition?

Though not all causes of hyperactivity are known, there are plenty of things proven to contribute to it. Staying away from certain things in pregnancy can lower your baby's risk of a hyperactive disorder. Take a look:

Most experts agree it is difficult to give a generalized answer for the prognosis of a coma, in part because of the wide variety of variables that affect prognosis -- but also because of the variable nature of the human brain. 

Night terrors are a parasomnia, or undesirable sleep behavior. Researchers suspect a genetic link may greatly influence the presence of night terrors, although no exact cause has been pinpointed.

Experts believe leprosy is spread through droplets that spray from a cough or a sneeze by an infected person. Here is a look at how contagious leprosy really is.