Dr. Zhong Nanshan: Smoking Does Not Prevent Alzheimer's Disease
During a recent health seminar held at "Heshuntan" in Futian District, Shenzhen, renowned academician Zhong Nanshan directly addressed a common misconception: the notion that smoking can prevent Alzheimer's disease. His response was clear and unequivocal: "On the contrary!"
The Evidence Against Smoking
Academician Zhong cited significant research to support his claim. A large-scale study initiated by a Finnish scholar in the United States involved over 21,100 smokers, spanning a duration of 23 years. The findings were alarming; a total of 5,367 participants, which accounts for a quarter of the sample size, developed Alzheimer's disease. This scientifically rigorous investigation serves as a strong counterargument to the myth that smoking could have protective benefits.
Impact on Both Smokers and Non-Smokers
Dr. Zhong elaborated on the broader implications of smoking, emphasizing that not only does heavy smoking in middle age increase the risk of dementia in old age, but passive smoking also poses a significant risk to non-smokers, including spouses of smokers. Globally, as awareness of these dangers has grown, countries like the UK have seen a notable decline in smoking rates, which correlates with lower incidence rates of lung cancer.
The Seasonal Increase in Respiratory Diseases
As winter approaches, the incidence of respiratory diseases tends to rise. Chronic Obstructive Pulmonary Disease (COPD) is particularly alarming in China, with a prevalence rate of 8.2%. Dr. Zhong pointed out that a majority of COPD patients have a smoking history, and many struggle with severe nicotine addiction. Alarmingly, COPD ranks as the third leading cause of death in the country, trailing only cancer and cerebrovascular accidents.
Late Diagnosis of COPD
One of the critical issues surrounding COPD is the lack of awareness regarding its symptoms. Dr. Zhong noted that more than 80% of patients only seek medical attention once the disease has progressed significantly. He stressed the importance of early detection and the need for regular lung function evaluations.
Recommendations for High-Risk Groups
For individuals over 45, Dr. Zhong recommends periodic lung function tests, similar to how blood pressure checks are conducted. This becomes even more crucial for four high-risk groups: long-term smokers, those prone to recurrent respiratory infections, individuals exposed to indoor pollutants, and workers in dusty occupational environments. He advised that screenings should begin at age 40 to facilitate early intervention and better health outcomes.
In conclusion, the relationship between smoking and cognitive health should be addressed with accurate information. Awareness and proactive health measures can significantly reduce risks not only associated with Alzheimer's disease but also other respiratory conditions.