46 million Americans (1 of 4 adults) smoke. Nearly all started smoking before age 20. In addition, 6 million teenagers smoke in the US.
The average weight gain after someone quits smoking is 4-10 lbs (9-22 kgs)
CNN (Jan 10, 2009)
One of the primary reasons of weight gain after smoking cessation is that when nicotine is no consumed, T3 levels decrease since nicotine increases the conversion of T4 to T3.
Risk of Disease
Cigarette smoking increases risk for cardiovascular disease and lung cancer. Those who smoke 1 pack per day have a five fold increase risk of sudden death (death with 1 hour in an asymptomatic or an apparently clinical stable individual) as compared to non-smokers. The excessive risk of cardiovascular disease is reduced within 2 years of quitting smoking.
ACSM (2001), ACSM's Resource Manual for Guidelines for Exercise Testing and Prescription, 4th ed.
Life Expectancy Cost
A smoker can expect to lose 5 minutes and 30 seconds of life expectancy for every cigarette they smoke.
Quitting Smoking with Help
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