Lifestyle

Why do smokers gain weight when they quit?

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Metabolic Changes

Nicotine increases metabolism and suppresses appetite. When someone quits smoking, their metabolism slows down, and they may experience increased appetite, leading to weight gain.

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Replacement Behavior

Some people may substitute food for cigarettes as a way to cope with cravings and withdrawal symptoms. 

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Changes in Taste and Smell

When someone quits smoking the heightened sensory experience can lead to increased enjoyment of food and potentially overeating.

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Psychological Factors

Smoking cessation can cause stress, anxiety, and mood swings, which may lead to emotional eating as a way to cope with these feelings.

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Water Retention

Nicotine is a diuretic, meaning it causes the body to release water and salt. When someone quits smoking, their body may retain more water, leading to temporary weight gain.

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Metabolic Hormones

Quitting smoking can disrupt the balance of hormones involved in metabolism and appetite regulation, potentially leading to weight gain.

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