Any suggestions as to how I can reduce the tension on my back? (Regarding sitting at my computer dest).?

The things you describe are factors that could indeed cause you problems with your back and general posture. Take a look at these advice sheets from the British Chiropractic Association which cover most of the areas you pinpoint. a href="http://bit.ly/cYANPV" rel="nofollow"http://bit.ly/cYANPV/a a href="http://bit.ly/bsHaMI" rel="nofollow"http://bit.ly/bsHaMI/a a href="http://bit.ly/aAdWrh" rel="nofollow"http://bit.ly/aAdWrh/a a href="http://bit.ly/bPJ9Si" rel="nofollow"http://bit.ly/bPJ9Si/a a href="http://bit.ly/97kM2s" rel="nofollow"http://bit.ly/97kM2s/a Also, doing exercises to strengthen your core and back muscles will undoubtedly be helpful. You can start with these gentle stretches and exercises www.straightenupuk.org but talking to your doctor or someone like a chiropractor or a physical therapist will allow you to get advice that will help you approach the issue from a variety of standpoints, both physical and environmental (lifestyle etc).