"Seeing is believing," the founder of lab company Truvian told me. So I tried its tabletop blood testing device—which promises results in 30 minutes—for myself.

Two U.S. companies teamed up to treat cancer patients using an unproven blood filter in Antigua, out of reach of American ...

The use of carbon monoxide was put under the spotlight during the Tour de France last year when the cycling website Escape Collective reported that riders from multiple teams inhaled the toxic gas to ...