smoking 10 cigarettes a week just one cigarette cuts life expectancy by about 20 minutes: Study Why Smoking ANYTHING Can Cause

Department of Health and Human Services, Centers for Disease Control and Prevention, National Center for Chronic Disease Prevention and Health Promotion, Office on Smoking and Health, 2014 [accessed 2016 Dec 20]

It is important to note that the current data say relatively little about the neural effects of nicotine

It will take time to un-link smoking from these activities, which is why, even if you are using a nicotine replacement, you may still have strong urges to smoke

Do not take up smoking in any given situation if you have started to walk into a smoke-free life and save your body from further harm

Layden JE, Ghinai I, Pray I, Kimball A, Layer M, Tenforde MW, et al

This is good news for global health, as we see in the scatterplot