By DAN CHILDS, ABC News Medical Unit What if obesity was an insidious infection you could catch from your friends and colleagues? Such is the scenario proposed in new research on an adenovirus known... [continue]

By AUDREY GRAYSON, ABC News Medical Unit I have a dark secret from my past. It involves a phase in my life which I am not proud to admit that I went through. From the age of about 12 to... [continue]

By JOANNA SCHAFFHAUSEN, ABC News Medical Unit Since hormonal birth control first appeared in the 1960s, nearly 80 percent of women have taken it at some point in their lives. The pills and patches are... [continue]