Not only do women live longer than men, on average, but a new study from the Mayo Clinic suggests they also may keep their cognitive function longer, too. In a study of more than 2,000 adults 70 to 89 years old, researchers found that men were 1.5 times more likely to experience mild cognitive decline than their female counterparts. Researchers tested elderly men and women in Olmstead County, Minn., for signs of mild cognitive impairment (MCI). MCI can be a pre-cursor to Alzheimers disease or other forms of dementia. Because some, but not all, patients with MCI go on to develop Alzheimers, understanding how MCI develops and how it affects the population is integral to early detection of dementia and Alzheimers. Though past research shows that women are more likely to suffer from Alzheimers in their lifetime, researchers found that there were significantly more men experiencing the early stages of cognitive decline: 19 percent of men had MCI whereas only 14 percent of women did. When MCI and dementia are taken together, a quarter of the study population was in some state of cognitive decline, a statistic that Petersen believes highlights the public health impact of the conditions and the importance of finding treatments for them. Gender and Alzheimers Why Do Men's Brains Decline Sooner?
Why might men decline earlier only to have a lower precedence of Alzheimers?
It may have to do with the progression of cognitive decline.
Men may experience cognitive decline earlier but stay in that stage longer, while women dont see cognitive impairment until later in life but have an abrupt decline into dementia.
A popular explanation for the overall gender difference seen in Alzheimers rates is life span. Women typically live longer than men and, therefore, are more likely to live through mild cognitive impairment and go on to develop Alzheimers disease.
Therefore, the men still living and able to be measured by researchers would be more likely to be in the early stages of the disease.
Heart disease also may play a role, because vascular diseases often accompany and exacerbate Alzheimers disease, one would expect early signs of dementia such as MCI among persons with more vascular disease, namely men.
Thanks & Regards, Raj. Kumar(info. courtesy to alesha411page & images from other websites)
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