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Exercise, Vitamin D Seems to Reduce Risk of Alzheimer’s Disease: Researchers

Sunday, July 11 (HealthDay News)-Physical Activity and Appropriate Levels Vitamin D It seems to reduce the risk of cognitive decline and dementiaAccording to two large long-term studies scheduled to be presented at an international conference on Sunday Alzheimer’s disease In Hawaii.

In one study, researchers analyzed data from more than 1,200 people in their 70s who were enrolled in the Framingham study. This study, which has tracked people in the town of Framingham, Massachusetts since 1948, has tracked participants’ cardiovascular health and now also cognitive health.

Physical activity levels of 1,200 participants were assessed from 1986 to 1987. Over 20 years of follow-up, 242 participants have grown dementia, 193 cases included Alzheimer’s disease..

Medium to large motion The risk of developing any type has been reduced by about 40% dementia..People with the lowest levels of physical activity were 45% more likely to develop any type of activity dementia Than the one who did the most motion.. These tendencies were strongest in men.

“This is the first study to track a large number of individuals over this long period of time. Reducing the risk of dementia is one additional addition to maintaining at least moderate physical activity, even for 80 years of life. It suggests that it may be an advantage, “Research author Dr. Zaldy Tan of Brigham and Women’s Hospital at VA Boston and Harvard Medical School said: Alzheimer’s disease Association news release.

The second study found a link between Vitamin D deficiency Increased risk of cognitive impairment and dementia in later years.

British researchers analyzed data from 3,325 people aged 65 and over who participated in the 3rd US National Health Insurance. Nutrition Regular survey. participant’ Vitamin D Levels were measured from blood samples and compared to performance in cognitive function measurements, including tests of memory, time and space orientation, and ability to maintain attention. People with a score of at least 10% were classified as having cognitive impairment.

In this study, the risk of cognitive impairment was Vitamin D, And 394% higher in severely ill patients Vitamin D deficiency..

“Lower vitamin D levels appear to increase the likelihood of cognitive impairment. This is consistent with previous European studies. Given that both vitamin D deficiency and dementia are common worldwide. And this is a major public health concern, “said David Llewellyn, research author at Exetter University Peninsula Medical College, in a news release.

When exposed to sunlight, the skin naturally produces vitamin D. However, most older people in the United States have inadequate vitamin D levels because as people grow older, their skin becomes less efficient at producing vitamin D and most of the year’s sunlight is limited.

“Vitamin D supplement It has proven to be a safe, cheap and effective way to treat deficiency, “Rwellin said. “But there are few foods that contain vitamin D, and US supplement levels are currently inadequate. More research to establish whether vitamin D supplementation has potential for the treatment of dementia. Is urgently needed. “

William Tees, Chief Medical and Scientific Director of the Alzheimer’s Disease Association, has pointed out many factors that may be associated with cognitive decline and Alzheimer’s disease, especially cardiovascular risk factors, in previous studies. ..

He added, “The Alzheimer’s Association and others have repeatedly called for longer-term, larger-scale research to clarify the role these factors play in health. aging brain. “

These new studies are “some of the first reports of this type in Alzheimer’s disease, which is encouraging, but not yet conclusive evidence,” Teeth said in a news release.

–Robert Preidt

Copyright © 2010 HealthDay.. all rights reserved.



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References

Source: Alzheimer’s Disease Association, News Release, July 11, 2010

Exercise, Vitamin D Seems to Reduce Risk of Alzheimer’s Disease: Researchers

Source link Exercise, Vitamin D Seems to Reduce Risk of Alzheimer’s Disease: Researchers

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