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NEW YORK (Reuters Health) - New research suggests that low vitamin D levels in the body are associated with thinking or "cognitive" impairments in older men, but whether vitamin D supplements can help is not yet known. In the study, an investigation of European men, subjects with low levels of vitamin D scored worse on a standard test of cognitive ability than did their peers with normal levels, Dr. David M. Lee, from the University of Manchester, UK, and co-researchers found. Although, the authors emphasize, the difference in scores was not that great.

Serum 25-Hydroxyvitamin D Concentration and Cognitive Impairment.\nLlewellyn DJ, Langa K, Lang I.\nJ Geriatr Psychiatry Neurol. 2009 Feb 4. [Epub ahead of print]\nPMID: 19073839 \ndoi:10.1177/0891988708327888\n

Diesel exhaust inhalation causes vascular dysfunction and impaired endogenous fibrinolysis. Mills NL, Törnqvist H, Robinson SD, Gonzalez M, Darnley K, MacNee W, Boon NA, Donaldson K, Blomberg A, Sandstrom T, Newby DE. Circulation. 2005 Dec 20;112(25):3930-6. PMID: 16365212 doi: 10.1161/CIRCULATIONAHA.105.588962

Besides the names, there are actually quite a few similarities between these three eye professionals. Luckily for you and other patients, each specializes in a certain area - allowing you to get the assistance required for whatever the impairment is in question.

It turns out that statins inhibit not only the liver from making cholesterol but may also block the brain from making cholesterol. That's a serious consequence, according to Yeon-Kyun Shin, a biophysics professor in the department of biochemistry, biophysics and molecular biology at Iowa State, because cholesterol is vital for healthy and optimum brain function. "If you deprive cholesterol from the brain, then you directly affect the machinery that triggers the release of neurotransmitters. Neurotransmitters affect the data-processing and memory functions. In other words, how smart you are and how well you remember things," said Dr. Shin in a statement to the media.