Brad Arnold, the lead singer of the American rock band 3 Doors Down, announced that he has been diagnosed with stage 4 kidney cancer. The cancer has spread to his lungs. Arnold, 46, shared the news on ...

NBC News' Steven Romo takes us inside a Brooklyn dance studio that is helping people who are managing Parkinson's disease.

Helene Duhamel was recently diagnosed with non-small cell squamous cell lung cancer. Duhamel shares her thoughts on her ...