cigarette smoking and fatigue Tobacco doesn’t just attack your lungs — it quietly damages your heart, brain, teeth, nails, more., Early warning signs like yellowing teeth, bad breath, chronic cough, blue nails, and are What It's Like to Quit

While nicotine itself isnt as harmful as other chemicals found in tobacco smoke, it still poses health risks

Many smokeless tobacco products come in flavors and packaging that appeal to young people

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Smoking also weakens lung function over time, making it harder for people with asthma to manage their symptoms effectively

47 An even larger study published by the same researchers in 2020 examined the records of more than 500,000 American ever-smokers who had completed a Tobacco Use Supplement administered as part of the US Census Bureaus Current Population Survey between 199293 and 201011