Where seniors live makes a difference not only in how much health care they receive but also the medications they're prescribed as some miss out on key treatments while others get risky ones, new research shows.

Flu vaccination is no longer merely a choice between a jab in the arm or a squirt in the nose. This fall, some brands promise a little extra protection.

The environment in which you live can be as disabling as a disease, and too often, older Americans wind up in a nursing home not because they're super-sick but because they can't get through their days safely at home.

Don't look for the morning-after pill to move next to the condoms on drugstore shelves right away but after a decade-plus fight, it appears it really will happen. Backed into a corner by a series of court rulings, the Obama administration has agreed to let the Plan B One-Step...

Obese mothers tend to have kids who become obese. Now provocative research suggests weight-loss surgery may help break that unhealthy cycle in an unexpected way by affecting how their children's genes behave.

Why does a joint replacement cost 40 times as much at one hospital as at another across the country? It's a mystery, federal health officials say.

Data being released for the first time by the government on Wednesday shows that hospitals charge Medicare wildly differing amounts sometimes 10 to 20 times what Medicare typically reimburses for the same procedure, raising questions about how hospitals determine prices and why they differ so widely.

The latest bad news in the hunt for an AIDS vaccine: The government halted a large U.S. study on Thursday, saying the experimental shots aren't preventing HIV infection.