High levels of cortisol in the hair shaft may increase the risk of heart attack, a study shows.

SAM-e plus prescription antidepressants may spell relief for hard-to-treat depression, according to a new study.

The long-term use of oral bisphosphonate osteoporosis drugs such as Actonel, Boniva, and Fosamax may be associated with a doubling in esophageal cancer risk, but the risk to individual users remains small, researchers say.