A lawyer for the man who shot Trayvon Martin says it's a case of self-defense, not one in which the state's "stand your ground" law applies.

To watch Whitney Houston's powerful "going home" service on Saturday was to be reminded that she was a one of a kind talent, with a divine instrument that even in death soared above all the other famous voices that gathered at the New Hope Baptist Church in Newark, New Jersey, to celebrate her. But sadly, Houston was a dime a dozen in another aspect of her life: her dependence on drugs and alcohol.

Last June, Glen Campbell stunned fans when he revealed in a press release that he was suffering from Alzheimer's disease. It was not an easy decision to go public with his private struggle, but his family felt it was a decision that needed to be made.

Scientists say they "serendipitously" discovered that a drug used to treat a type of cancer quickly reversed Alzheimer's disease in mice.

As Syria's indiscriminate crackdown continues, U.N. Ambassador Susan Rice made clear on CNN that the U.S. has lost patience with President Bashar al-Assad.

Paul Stamets was shy as a child; he couldn't look people in the eyes, so he stared at the ground. That's where he found mushrooms.

As Kenya's leading psychiatrist, Frank Njenga has been championing the cause of better mental health care for more than three decades.

Newt Gingrich's stunningly strong win in the South Carolina primary capped an incredible week in the Republican presidential nominating cycle., but what did we learn from it?

The three GOP presidential candidates at the top of Iowa polls are taking aim at one another, with the surging man in third — Rick Santorum — trying to claw his way into the top two ahead of Tuesday's Iowa caucuses.

Minnesota Sen. Michele Bachmann weaved between tables at the Kay's Kafé in tiny Corning, Iowa, on Wednesday, interrupting patrons enjoying their "6 oz. Ribeye Steak Sandwich" (only $5) and pleading for the votes of conservatives just days before the Iowa caucuses.