Once tattoo ink is injected into the skin, it doesn't all stay put, research is finding.
A 62-year-old man in the United Kingdom lost feeling in both his legs in an unusual case that linked his neurological problems to heavy use of a zinc-containing denture fixative.
Parkinson's disease ravages brain cells, but the condition may actually start out in the gut, and then spread through nerves to the brain, a new study finds.
Researchers say they are one step closer to developing a vaccine that could block heroin's addictive high.
People who are both elderly and obese face a tough conundrum: Weight loss is important for health, but weight loss can also lead to a decline in muscle mass.
There are potential risks that may come with watching the Netflix show "13 Reasons Why," experts say.
The people of Sardinia are famous for their longevity, but also have some of the world's highest rates of multiple sclerosis and lupus.
Even though global warming is predicted to unleash calamities including frequent typhoons and more global conflicts, Americans may at least get more exercise as the planet warms.
The entire female menstrual cycle has been replicated in a bento-box-like device that can fit into the palm of your hand.