Word: braine
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...rural Italians over age 65 during a period of four years. At the beginning of the study, none had memory problems; by the last check up, 85 participants had developed some form of dementia - including Alzheimer's and vascular dementia, which is associated with decreased blood flow to the brain...
...disease that accounts for roughly 70% of all cases of dementia - they found a marked impact on the risk of developing vascular dementia, the second most common variation after Alzheimer's. As its name implies, vascular dementia is a condition where restricted blood flow to certain parts of the brain impacts cognitive abilities, affecting the tissue like a series of small strokes...
...people who did little to no exercise. Those who expended the most energy during moderate activities like biking or yard work had a 29% lower risk. "It means that even small amounts of inexpensive and easy-to-perform exercise - just walking - can be of help to protect you against brain vascular damage," says Dr. Giovanni Ravaglia, the study's lead author, "and this is a type of exercise that even older disabled people with chronic disease can do without too much trouble...
...study's authors suggest that exercise lowers the risk for cerebrovascular disease by increasing blood flow to the brain; exercise may also enhance the brain's ability to build "functional reserves" against damage by building elasticity in synapses and decreasing the secretion of stress hormones that negatively impact brain tissue. Still, the authors note that like many observational studies, theirs has limitations. It's possible, for example "that exercise, in our study, was a proxy for other, unaccounted for lifestyle habits or environmental influences," says Ravaglia. People who are regularly active are "more likely to be more careful of their...
...premature to specifically prescribe exercise to prevent dementia, but it's not premature to prescribe exercise to prevent heart disease," says Tan. "A lot of the things that have been proven to be good for the heart, now there's accumulating evidence that these work for the brain...