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Quit Smoking for a Sharper Brain: New Study
22 May
Summary
- Quitting smoking lowers dementia risk by 16% compared to continued smoking.
- Brain benefits from quitting increase over time, potentially equaling non-smokers.
- Gaining over 22 pounds after quitting negates the reduced dementia risk.
Quitting smoking may offer significant protection for future brain health, according to new research. A study tracking nearly 33,000 U.S. adults without dementia for about a decade revealed that past smokers had a 16% lower risk of developing dementia compared to current smokers.
This protective effect was observed to increase over time. Participants who had stopped smoking approximately seven years prior showed dementia risk levels similar to those who had never smoked, highlighting the long-term cognitive benefits.
However, the study also indicated that post-quitting weight changes play a crucial role. Individuals who gained 11 pounds or less after quitting maintained a reduced dementia risk. Conversely, those who gained 22 pounds or more did not experience this same protective benefit.
These findings suggest that while quitting smoking is beneficial for long-term brain health, effective weight management after cessation is important for maximizing these cognitive advantages as individuals age.
