The research finding of a negative correlation between smoking and the Alzheimer's type of dementia,i.e.,smokers were less likely to develop Alzheimer's type dementia,is generally interpreted to mean that
A) research findings are sometimes in error.
B) nicotine protects against dementia for most people.
C) smoking may be helpful in protecting people at high risk for Alzheimer's.
D) smoking may shorten the lives of smokers so they do not live long enough to develop dementia.

Question

Quizplus · Accepted Answer

While the research finding does show a negative correlation between smoking and Alzheimer's type dementia, it is important to note that this does not mean smoking is beneficial for brain health. Smoking is known to have negative effects on overall health, and this particular correlation may be explained by the fact that smokers are more likely to die at a younger age, before they develop dementia. Therefore, option D is the best answer as it provides a logical explanation for the correlation without suggesting that smoking is actually helpful for brain health.

The Research Finding of a Negative Correlation Between Smoking and the Alzheimer's