Some cats do seem more alert and energetic shortly before death. Here's what this "terminal rally" is, why it happens, and how to tell it from recovery.
Common food allergy tests have real limits and high false positive rates. Here's what the science says about which tests are reliable and which aren't.
Wafers show up in your snack aisle, your smartphone, and your medicine cabinet. Here's what makes each type unique and how medical wafers deliver drugs.