"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.

A national survey undertaken by University of South Australia researchers paints a concerning picture: Medicine shortages are increasing patient stress as well as pharmacists' workloads, with 89.5% of ...

Should we all be concerned about our cortisol levels? I took a blood stress test and spoke with experts to find out.