Smoking 'causes hundreds of DNA changes' - BBC News http://bbc.in/2fqyPMC pic.twitter.com/ojJZY1cKGw
12:00 PM - 6 Nov 2016
0 replies
28 retweets
14 likes
Loading seems to be taking a while.
Twitter may be over capacity or experiencing a momentary hiccup. Try again or visit Twitter Status for more information.