Celebrities
Dr Hilary Jones, GMTV's resident doctor
"Quitting can be the single most beneficial step a smoker can take to improve their health. It's a habit that kills around half of all long term smokers, but the good news is that quitting starts to reverse the damage almost immediately.
"It's fantastic to see so many people committing to quit on No Smoking Day. If you'd like to stop, join the millions of smokers ready to change their lives for the better on 12 March."
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