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Do Exercise and Physical Activity Protect the Brain?

11/16/2016

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Exercise and other types of physical activity many benefits. Studies show that they are good for our hearts, waistlines, and ability to carry out everyday activities. Epidemiological studies and some intervention studies suggest that physical exercise may also play a role in reducing risk for Alzheimer’s disease and age-related cognitive decline. 
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Animal studies point to why this might be so. Exercise increases both the number of small blood vessels that supply blood to the brain and the number of connections between nerve cells in older rats and mice. In addition, researchers have found that exercise raises the level of a nerve growth factor (a protein key to brain health) in an area of the brain that is important to memory and learning.

Researchers have also shown that exercise can stimulate the human brain’s ability to maintain old network connections and make new ones that are vital to healthy cognition. In a year-long study, 65 older people exercised daily, doing either an aerobic exercise program of walking for 40 minutes or a nonaerobic program of stretching and toning exercises. At the end of the trial, the walking group showed improved connectivity in the part of the brain engaged in daydreaming, envisioning the future, and recalling the past. The walking group also improved on execu­tive function, the ability to plan and organize tasks such as cooking a meal.

Several other clinical trials are exploring further the effect of physical activity on the risk of Alzheimer’s and cognitive decline. Other NIA-supported research is examining whether exercise can delay the development of Alzheimer’s disease in people with MCI. Findings from these and other clinical trials will show more definitively whether exercise helps protect our brains from cognitive impairment.

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Spend Wisely Toons link
9/1/2023 07:09:50

Hello mate great blog ppost

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