Usually a pre-existing condition does not improve chances for survival. For lung cancer and diabetes, that may not be the case.

Acknowledging that early stage Alzheimer's disease patients often do not yet have symptoms, Mayo Clinic researchers have proposed adding two pre-clinical stages to better classify patients.

Social acceptance and bullying are a top concern in the classroom, for both children and their parents. Unfortunately, children can have a tendency to tease and ostracize their peers mercilessly, especially for being different or possessing undesirable characteristics.

For the past 30 years, scientists have had no success developing a vaccine for AIDS. Their track record may change with the discovery of a powerful new anti-HIV antibody.

The legalization of marijuana is a polarizing issue of which both sides have valid points. However, a new study from Columbia University has given those who would like to keep it illegal a little bit more ammo.

You should know about all the possible risks and benefits of any medical procedure you have. Men undergoing treatment for colon cancer aren't getting the information they need.

Stents are tubes that are used to treat narrowed or weakened arteries. In many cases, they can be lifesaving. But are some types of stents safer than others?

The overnight shift might seem like an easy way to make money, but a new study warns that disrupting your sleep cycle as a teen can increase your risk of developing multiple sclerosis.

Obesity, diabetes, and an overall unhealthy diet can put people at risk for both kidney stones and gallstones. Now, it seems the link between these two types of painful stones involves more than the risk factors they share.

Finding a link to a disease can lead to new ways to diagnose and treat the disease. For colorectal cancer, scientists may have discovered its beginning which could lead to new treatments.