A British Medical Journal study challenges the belief abortion yields a higher risk of depression.

The authors suggest abortion may be linked to a lower risk of depression through beneficial effects on education, income, and family size

Researchers have discovered a possible cause of prostate cancer, a finding they say could result in better forms of treatment or possibly a cure. Doctors had thought prostate cancer was the result of lots of random genetic mutations, but a study involving the University of Michigan Medical School and Brigham and Women's Hospital in Boston suggests prostate cancer begins after specific genes fuse.

This new information may allow doctors to begin to divide prostate cancer -- which is now treated as a single disease -- into different types as they have been treating breast cancer for years

A British Medical Journal study challenges the belief abortion yields a higher risk of depression.

The authors suggest abortion may be linked to a lower risk of depression through beneficial effects on education, income, and family size

In the first study of its kind, researchers at Saint Louis University have demonstrated immunization with a new vaccine could potentially prevent more than a million cases of pertussis (whooping cough) each year in adolescents and adults.

Most children are protected from pertussis by a series of vaccines in early childhood. But the vaccine protection wanes after a decade or so, leaving adolescents and adults susceptible to the bacterial infection

Contrary to what many might believe, a new study shows that smoking marijuana that smoking marijuana on a regular basis is not as harmful as smoking cigarettes, as an ingredient known as THC, keeping it from promoting lung cancer.

Whereas nicotine has several effects that promote lung and other types of cancer, THC acts in ways that counter the cancer-causing chemicals in marijuana smoke, according to Dr. Robert Melamede of the University of Colorado in Colorado Springs