Homocysteine, a marker for cardiovascular disease risk, is associated with lower scores on tests that evaluate cognitive skills (thinking, reasoning, remembering, imagining, and learning words).  In a 2005 analysis of data from the Veterans Affairs Normative Aging Study, tracking men aged between 50 and 85 years, researchers at Tufts University found that men with higher blood levels of folate (folic acid), pyridoxine (Vitamin B6), and cobalamin (Vitamin B12) were able to retain their verbal skills and spatial perception skills.  High homocysteine levels were found to decrease recall memory skills.  To help prevent against age-related mental decline and reduce homocysteine levels, eat green leafy vegetables (rich in folate and B vitamins), and take a Vitamin B complex supplement.

"The power of Thought, the magic of the Mind!" ~ Lord Byron