Vitamin D apparently stands for Definitely good for something, but what exactly? In recent years, the long neglected vitamin has ascended from useless to use-it-to-improve-every organ, and now this: The Scientific American reports on two European studies whose results suggest that vitamin D can make us smarter. The first study, conducted at the
University of Cambridge, looked at vitamin D levels in more than 1,700
men and women aged 65 or older who were divided
into four groups based on vitamin D blood levels: severely deficient,
deficient, insufficient (borderline) and optimum.The scientists found that the lower the subjects’ vitamin D levels,
the worse their performÂÂance on a battery of
mental tests. Compared with people with optimum vitamin D levels, those
in the lowest quartile were more than twice as likely to be cognitively
impaired. The same journal reports on a second study, conducted at the University of Manchester in
England, that looked at vitamin D levels
and cognitive performance in more than 3,100 men aged 40 to 79. The researchers found that people with
lower vitamin D levels exhibited slower information-processing speed, and the correlation was particularly strong among men older than 60 years.
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Both of these studies left a lot of questions unanswered including the socio-economic status of the participants and, as the same may well play a significant role in the developmental ability or disability of the person in the test, such must necessarily be considered along with the educational level that each attained, all absent from this test.
A skewed test with bad data gives bad or, at least poor results and inaccurate information and questionable conclusions.
Undoubtedly, vitamin D is important and beneifical to the human body however, these two test don’t demonstrate the same.
Even better than vitamin d is provigil.One can buy the generic brand for substantially less throug Canada.