Before you take a bite, read this expert advice.

NASHVILLE, Tenn. (WTVF) — Is your garden looking a little sad? It could be your soil. Tiffany Jenkins at The Bloomery helps us take a sample to find out. Watch this Let Me Help segment in the video ...

A polymerase chain reaction (PCR) test detects genetic material from a pathogen or abnormal cell sample. Ways of collecting samples include a nasal swab, a saliva swab, or taking a sample of blood.

One of the best parts of braving a trip to Costco (navigating the insane swarms of other customers) is hitting up the sample carts. If you're lucky and hit a particularly fruitful trip, you can nosh ...