Recent research from a university in China has revealed that quitting smoking may significantly reduce the risk of developing dementia later in life. The study, which analyzed data from over 32,000 adults over a 25-year period, found that former smokers had a lower risk of dementia compared to those who continued smoking.

Study Findings

Published in the journal Neurology, the study documented 5,868 cases of dementia during its course. Participants who quit smoking during the study had a notably lower risk of developing dementia than current smokers. Their risk levels were similar to those who had quit smoking before the study began and those who had never smoked.

Moreover, the researchers discovered that the risk of dementia continued to decline the longer a person remained smoke-free, approaching that of never-smokers after approximately seven years. The benefits were most pronounced among individuals who gained little or no weight after quitting smoking.

Expert Insights

Hui Chen, the lead researcher, emphasized that quitting smoking supports long-term brain health, but the post-quitting lifestyle also plays a crucial role. Zaid Fadul, a Harvard-trained physician and chief medical officer of Bespoke Concierge MD, who was not involved in the research, noted that the findings add to the growing evidence that smoking cessation can protect long-term brain health.

Fadul explained that smoking contributes to chronic inflammation, oxidative stress, and damage to blood vessels that supply the brain, all of which are associated with cognitive decline and dementia risk. He encouraged smokers, stating that it is rarely too late to quit, as the body and brain begin recovering soon after smoking stops.

Improvements in circulation, reduced inflammation, and better cardiovascular health can help preserve cognitive function later in life. Fadul highlighted that every year without tobacco is a step toward lowering future dementia risk and improving overall health.

Study Limitations

While the findings are encouraging, the study does have limitations. The researchers identified an association between quitting smoking and a lower risk of dementia, but the study was not designed to prove a direct causal relationship. Other health, lifestyle, and environmental factors may have also influenced the outcomes of the participants.

Fox News Digital reached out to the researchers for further comment on the study.

Original reporting: Fox News (HLL/CB) — read the source article.