The research finding that smokers were less likely to develop Alzheimer's disease 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 that they do not live long enough to develop dementia.

Question

Quizplus · Accepted Answer

The research finding refers to a correlation between smoking and a lower incidence of Alzheimer's disease. However, it is important to note that smoking has numerous negative health effects and is a leading cause of many other diseases. Therefore, it is more likely that smokers simply do not live long enough to develop Alzheimer's disease.

The Research Finding That Smokers Were Less Likely to Develop