The chiropractic clinic is warning that increased time spent sitting watching TV shows like Strictly Come Dancing and X Factor this fall could lead to more back pain, as viewers may spend the equivalent of an extra two days on the sofa. Poor posture from excessive sitting is a major cause of back pain. The clinic recommends sitting properly supported, taking breaks to stand and stretch every 40 minutes, and doing light exercise during commercials to counteract the effects of prolonged sitting.