Smoking can trigger back pain.

Smoking can trigger back pain: 

October 26 2009 | Times of India Bangalore

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 Canadian researchers have linked smoking to chronic lower back pain. In the study, boffins identified a higher rate of chronic lower back pain among people who smoke every day. According to Michael Cousins, the study found that smoking interferes with pain transmitters, causing osteoporosis. The condition resulted in chronic lower back pain which could also trigger a downward spiral in a persons life, he warned. Chronic pain is now regarded as a disease in its own right, said Cousins, who is a director at the Royal North Shore Hospital in Sydney.