When you add up the health risks, cost, smell and endless hours spent shivering outside to have that sacred puff, it's a wonder people start smoking at all. But they do.
And while quitting may seem impossible, smokers now count for less than 20% of the British population for the first time in 80 years - so it is possible to quit.
And what better time to start than today on National No Smoking Day?
We spoke to e-cigarette brand Socialites to get some top ten holistic tips on giving up smoking and getting your health back on track.