A global team of scientists and clinicians found that a cheap, easy-to-use test for tuberculosis was just as good, if not ...

TB tests use phlegm — not the easiest thing to get or work with. It takes time for results. And there can be false negatives ...

Tests promising to reveal your “biological age” are booming. But scientists say the results vary widely — and aren’t reliable ...

Threshold pace usually refers to the fastest pace you can sustain while keeping lactate production and clearance relatively ...

Home pregnancy tests are simple, discreet, and widely available. But simple does not mean straightforward. Many women take ...

Cancer claims more than 10 million lives every year globally. Research shows that detecting cancer early can greatly improve ...

We asked experts when you should use one, and when you’re better off visiting an ER or primary care doctor instead.