Los Angeles - Want to avoid premature aging? Want to be free of dementia and Alzheimer's? Easy, as long as you regularly consume vitamin D. This is based on research results.
HealtyDay News preach, physical activity and adequate levels of vitamin D can reduce the risk of cognitive decline and dementia. Long-term study of it has been presented at the International Conference on Alzheimer's Disease in Hawaii, Sunday (11 / 7) then.
In one study, researchers analyzed data from more than 1,200 people in the 1970s who enrolled in the Framingham Study. Research into the people in the town of Framingham, Mass., as a respondent, since 1948, analyzes the heart health and cognitive health.
Physical activity level of the 1200 participants assessed at 1986-1987. More than two decades later, 242 participants suffering from dementia, including 193 patients with Alzheimer's.
They are conservative with the number of high activity has around 40% to avoid a risk of getting various types of dementia. People with the lowest levels of physical activity, 45% more likely to be attacked by all types of dementia, than those who do most exercises. This is a very dominant male.
"This is the first study involving a large group of individuals for a long time. This shows that to reduce the risk of dementia may be one additional benefits to maintain at least moderate physical activity. Even for the eighth decade of life," said study author Dr. Zaldy Tan, from Brigham and Women's Hospital, VA Boston and Harvard Medical School in a news release the Alzheimer's Association.
A second study found an association between vitamin D deficiency and increased risk of cognitive decline and dementia later in life. Researchers in the British Isles analyzed data from 3325 people aged 65 years.
Vitamin D levels were measured based on blood samples from participants and compared with their activity on cognitive function measures. Tests performed included tests of memory, orientation in space and time, and the ability to sustain attention. Those who achieve only 10% were classified as cognitively impaired.
This study also found that the risk of cognitive impairment was 42% higher in people who lack vitamin D. And, 394% higher for those with severe deficiency of vitamin D.
"It seems that the increase in the level of cognitive impairment, lack of vitamin D. This is consistent with the findings of previous European studies. Given that vitamin D deficiency and dementia is a common thing in the world. This is really alarming," said study author David Llewellyn, from the University of Exeter Peninsula Medical School.
In fact, it's skin naturally produces vitamin D when exposed to sunlight. However, most adults and older in the United States less levels of vitamin D because their skin is less efficient in producing vitamin D due to lack of sunlight.
"Vitamin D supplements have been proven to be a safe, cheap and effective way to treat deficiencies. However, some foods contain vitamin D supplementation and the level in the U.S. today is not adequate. Further research is needed to determine whether vitamin D supplementation has the potential disruption dementia therapy, "said Llewellyn.
Previous research has pointed to a number of factors that may be associated with cognitive decline and Alzheimer's. Especially cardiovascular risk factors, said William Thiès, medical officer at the Alzheimer's Association.
He added, "Alzheimer's Association and others have repeatedly called for the long term, more research studies to clarify the major role these factors play cause of the aging brain. Some of the first report of this type in Alzheimer's, and that encourages, but there has been no definitive evidence. " [Mor]
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