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Do benefits of physical, mental activity on thinking differ for men and women? - Video

Published On 2022-07-23T09:45:54+05:30  |  Updated On 23 July 2022 9:45 AM IST
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Overview

Studies have shown that physical and mental activity help preserve thinking skills and delay dementia. A new study suggests that these benefits may vary for men and women. The study is published in the July 20, 2022, online issue of Neurology, the medical journal of the American Academy of Neurology.

The study looked at the effects of physical and mental activities, such as reading, going to classes, or playing cards or games, on cognitive reserve in the areas of thinking speed and memory. Cognitive reserve is the buffer that occurs when people have strong thinking skills even when their brains show signs of the underlying changes associated with cognitive impairment and dementia.

The study involved 758 people with an average age of 76. Some had no thinking or memory problems, some had mild cognitive impairment, and some had dementia. The participants had brain scans and took thinking speed and memory tests. To calculate cognitive reserve, people's thinking tests scores were compared against the changes in the brain associated with dementia, such as the total volume of the hippocampus, a key brain region impacted by Alzheimer's disease.

People were also asked about their usual weekly physical activity. For mental activity, they were asked whether they participated in three types of activities in the past 13 months: reading magazines, newspapers or books; going to classes; and playing cards, games or bingo. They were given one point for each type of activity, for a maximum of three points.

For mental activity, participants averaged 1.4 points. For physical activity, participants took part in an average of at least 15 minutes per week of activities that elevate heart rates such as brisk walking and biking.

Researchers also looked at whether the relationship between physical and mental activities and cognitive reserve was affected by the gene that carries the strongest risk for Alzheimer's, called APOE e4. They found that for women, having the gene lessens the effects of the beneficial relationship between physical and mental activities and cognitive reserve.

The study does not prove that physical and mental activities help improve cognitive reserve. It only shows an association.

Reference: "Do benefits of physical, mental activity on thinking differ for men and women?" AMERICAN ACADEMY OF NEUROLOGY;Neurology.

Speakers

Isra Zaman

B.Sc Life Sciences, M.Sc Biotechnology, B.Ed

Isra Zaman is a Life Science graduate from Daulat Ram College, Delhi University, and a postgraduate in Biotechnology from Amity University. She has a flair for writing, and her roles at Medicaldialogues include that of a Sr. content writer and a medical correspondent. Her news pieces cover recent discoveries and updates from the health and medicine sector. She can be reached at editorial@medicaldialogues.in.
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