Watch The Incredible Transformation Of Dementia Patients As They Listen To Music

Never underestimate the power of music.

Music matters.

Anyone who doesn't agree should check out the trailer above for "Alive Inside," a documentary on the revitalizing effects of music particularly on those battling dementia.

It's an awesome display of how music can reawaken the mind in ways that modern medicine can't.

Here's a longer cut from the movie:

"Alive Inside" won the Audience Award at the 2014 Sundance Film Festival and is currently out on Netflix.

(H/T: Upworthy)