"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." TAKING A COVID-19 TEST is probably your first instinct when you wake up with a fever or sore throat or ...

A false positive pregnancy test result is uncommon, but it can happen. Learn how things like medications and medical conditions can cause a false positive result. If you're taking a pregnancy test, ...

False-positive mammography results are common, but a large population-based cohort study conducted in Sweden found an elevated incidence of developing and dying of breast cancer up to 20 years after a ...