However, a 33 NRR may not be totally necessary for sleep — the measurement is primarily used to gauge ear protection from potentially damaging sounds, such as those from loud machinery or music.

Want to add to – or start – your growing ear stack? Look no further than a helix piercing. But before you go under the needle, it's worth brushing up on all you need to know about this ...

Acne is the most common skin condition in the United States, affecting up to 50 million Americans annually. 1 There are different types of acne (blackheads, whiteheads, pimples, acne cysts or nodules) ...