Dipping or using chew may not cause lung cancer, but oral cancer is still a big risk. Smokeless tobacco products have nitrosamines, which can cause cancer at high levels.

Besides transplant, dialysis is the only way to keep a kidney failure patient alive. While dialysis may be lifesaving, it can lead to infection. Luckily, there are drugs to treat such infections.

Treating addiction to painkillers may start with electronic monitoring of prescriptions. Doctor shopping and selling excess prescriptions may be a thing of the past.

Cancer cells are really smart. They can hide out during treatment. Or they can resist treatment only to appear later. They can also avoid the body's defense system. Brain cancer researchers may have found a way to outsmart these smart cells.

Drugs are often used to help memory in people with dementia. New research is looking into ways a hormone may help people with dementia too. A recent study found that taking a hormone, which is a natural part of the body’s function, improved thinking skills for elderly people.

The cough reflex works to eject toxins from the respiratory system. If the cough reflex doesn’t work right, respiratory infection risk is higher.

You probably think of melanoma as a form of skin cancer - the worst kind. You're correct. But melanoma is also a rare type of cancer involving the nasal passage and nearby sinuses (sinonasal).

Rates of kidney failure are on the rise, which could lead to more people in poor health and higher health care costs. To stop these possible problems, we need to better understand our risk of kidney failure.