High density lipoproteins (also known as HDLs) are sometimes referred to as "good cholesterol." We take a look at why these substances are an important part of heart health.

A desire for disability? For people with Body Integrity Identity Disorder, it's an ever-present problem.

Gout is a form of inflammatory arthritis that occurs when too much uric acid builds up in the blood. We take a look at what puts you at risk for this painful condition.

X-rays are used to create images of internal structures in the body through the use of radiation. Since radiation is commonly associated with cancer, could X-rays actually be making us sick?

There is no shortage of creams that claim to remove age spots. However, do they really work? Are they worth the money you'll spend on them?

A total knee replacement involves replacing your entire knee with an artificial joint. Here is a look at how much a knee replacement can cost you.

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. 

Pain is part of the human condition. But there are different types of pain. Here is a look at the different types of pain, chronic and acute, and how they are different.