which one is more harmful cigarette or alcohol Infographic: Americans Say Sugar Than Marijuana Can smoking and drinking affect

Weight and usage tracking: If a device tracked weight and/or toileting habits, we determined how accurate and consistent those results were compared with our own observations

EX is a text-based service where anyone ages 13 and up can sign up to receive messages to support them as they quit

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Participants started with a recommended varenicline dosage of 0.5 mg QD for the first 3 days, increasing to 0.5 mg bid for days 47, and following to the maintenance dosage of 1 mg bid

What is already known on this topic Smoking cessation is often followed by an increase in bodyweight, but estimates vary and are not well grounded What this study adds Smoking cessation is associated with a mean increase in body weight of about 4-5 kg after 1 year, with most weight gain occurring within three months of quitting Changes in body weight vary widely, with around 16% of quitters losing weight and 13% gaining more than 10 kg Notes Cite this as: BMJ 2012;345:e4439 Footnotes Contributors: H-JA, AF, PL, and PA contributed to the planning