If your job requires you to spend eight or more hours a day uncomfortably hunched over a computer, this Life Hacker article will likely prove to be very helpful. It lists several different exercises you can perform that will strengthen your back while also realigning your posture back to its proper state.
Read the full article here: http://lifehacker.com/five-quick-exercises-you-can-do-to-fix-your-hunched-pos-1769633168