Dogs have been successfully trained to sniff out Parkinson’s disease in samples of oil taken from human skin. Researchers at ...

Bacteria that cause intestinal infections typically avoid a stinky chemical—one that can kill them at high enough ...

Studies have shown that dogs can detect cancer cells in their early stages, thanks to the volatile organic compounds (VOCs) emitted by the human body when tumors develop. Some training programs have ...

A woman who smelled her husband’s Parkinson’s before it was diagnosed has helped develop a new test for detecting the disease up to seven years before symptoms appear. Scientists at the University of ...