Toxins in cigarette smoke prevent stem cells from becoming cartilage

Toxins in cigarette smoke prevent stem cells from becoming cartilage: "Smoking has been shown to delay skeletal healing by as much as 60 percent following fractures. Slower healing means a greater chance of re-injury and can lead to chronic pain and disability. The obvious solution is for smokers to quit when they get hurt, but studies show that just 15 percent can."

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