Hi I'm new here. I have smoked for over 35 years, although dont want to but find it hard to quit. I have been going to the gym on and off for 12 months and follow mostly a Mediterranean diet. I have never run before but have (after a couple of glasses of wine), agreed to run a half marathon in September!! I have found a 12 week training programme to follow and am quitting smoking on Monday. Does anyone have any helpful tips for me regarding diet and exercise??