Experts explained how to prevent dementia after the age of 65

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Maintaining cognitive health with age I become more and more important. Currently, 55 million people worldwide suffer from dementia, a syndrome that affects mental abilities. Experts say that developing dementia as you get older is not a one-way street. You can reduce your risk by at least 30 percent with a simple approach.

The benefits of exercise for brain health have long been established. But recent studies have confirmed that exercising late in life can have a significant impact on the risks of dementia and Alzheimer's disease.

In fact, research has shown that physical activity in old age best supports brain health and reduces the impact of cognitive aging. It also points out that lack of physical activity is the cause of more than four million cases of dementia.

The study was led by Caitlin Casaletto, MD, of the Center for Memory and Aging at the University of California. To determine the extent to which exercise affects the brain health of older adults, her team recorded the motor activity data of 404 individuals and then performed a postmortem assessment of the brains. They found that those who exercised more in later life were significantly less likely to develop Alzheimer's disease or other forms of dementia before death.

Other studies also support these findings. A study with a similar design showed that older people who exercised more often performed better on memory tests, and their cognitive functions were higher.