this discussion reminds me of the famous anecdotal stories of how smokers are renown for being the fastest healers, and up and about quickest time, quicker than non smokers, in hospitals, (not for everything of course
). I have heard this a number of times from reliable sources over the years.
Of course you cant smoke in hospital, and you have to get on your feet quicker to be able to go outside for a smoke - and the habit is stronger than broken bones apparently - true story