Prevent neck hump

Do you have years of poor posture?  Hours of sitting at a computer?  Or just getting old? 

https://www.youtube.com/watch?v=5X1D8RgWpZQ

https://www.youtube.com/watch?v=xJ7kNF5s9gA  Several posture videos.

https://www.youtube.com/watch?v=4uzd_nFzj0Y

http://saveourbones.com/weekend-challenge-the-hump-straightener/

http://2beingfit.com/super-effective-hump-back-correction-exercises/