Was a long term smoker for 45 years, but have used e-cig, mainly vype for the last five and have felt much better in my own health. I am over 70 years of age, but still cycle over 50 miles a week (often rather more), still do all my own gardening and, as I live alone, all myn housekeeping cooking etc. The next best benefit, apart from going to vype is, if you own a car, ditch it and start to use public transport, bicyles and/or taxis as and when necessary.
JOHN R ORR