FAQ
How does smoking affect your brain
Smoking increases stroke risk by 2-4x and may accelerate cognitive decline.
Quick Answer
Smoking increases stroke risk by 2-4x and may accelerate cognitive decline.
Detailed Explanation
It damages blood vessels, reduces oxygen, and may increase dementia risk. Quitting improves brain health.
Key Facts
- Stroke risk drops to near-normal within 5 years of quitting
- Smoking may increase dementia risk by 30-50%
What the Research Says
WHO identifies smoking as a major stroke risk factor
Frequently Asked Questions
Can smoking cause memory loss
May contribute to cognitive decline and dementia
Does brain function improve after quitting
Yes, circulation and oxygenation improve within weeks
Sources & References
The information in this article is based on publicly available research and guidance from the following authoritative health organizations:
- CDC - Smoking & Tobacco Use
- WHO - Tobacco
- NIH - National Cancer Institute
- American Lung Association
- American Heart Association
- Truth Initiative
- Smokefree.gov
Sources accessed February 2026
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