The timeline, the withdrawal, the cravings
Hour by hour and week by week: what changes, what it feels like, how long it lasts, and which of the popular claims about it are not supported.
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How Long Nicotine Stays in Your Body
How long nicotine and cotinine stay detectable in blood, urine, saliva and hair, why tests disagree, and what that means for insurance tests and cravings.
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Nicotine Cravings: What They Are and How Long They Last
What a nicotine craving is physically, how long one lasts, the three trigger types, and why a craving at six months differs from day two. Evidence-based options.
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Nicotine Withdrawal: Timeline, Symptoms, and What Helps
A calm, evidence-based guide to nicotine withdrawal: what peaks at 72 hours, what lingers at six weeks, and which options have trial support.
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Quit Smoking Timeline: What Happens, Hour by Hour
What the body does after the last cigarette, hour by hour and week by week, with the NHS and CDC as sources and the popular graphic corrected where it overstates.
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Weight Gain When You Quit Smoking
What the evidence says about weight gain after quitting smoking: typical amounts, why it happens, and how to think about the trade-off without panic.