A look at new research on using THC, the principal drug in marijuana, to fight HIV and damage cancer cells.
The number of men who have sex with men having unprotected sex has steadily been increasing from 2005.
George Will fears that gay marriage will cause straight people to turn gay.
Given the stark differences both in ideology and tone, how do some voters remain independent or undecided?
Genes play a role in determining what our political opinions are, and how strongly we hold them.