Grail's Galleri test screens for more than 50 different types of cancer from a single blood draw. (Getty Images) If you could take a simple blood test that could detect multiple types of cancer while ...

A new paper describes a test that can differentiate between different types of asthma via a nasal swab. Researchers hope the test can eventually be used to help match patients with better treatments.

If you could take a simple blood test that could detect multiple types of cancer while they’re still in an early and treatable stage, would you? For many, the answer would be a resounding yes.