Changes

== Exercise and cognitive performance ==

== Exercise and cognitive performance ==

According to the [[Centers for Disease Control and Prevention]] (CDC): "[[Exercise|Physical activity]] can help you think, learn, problem-solve, and enjoy an emotional balance. It can improve memory and reduce anxiety or depression. Regular physical activity can also reduce your risk of cognitive decline, including dementia."<ref>[https://www.cdc.gov/nccdphp/dnpao/features/physical-activity-brain-health/index.html#:~:text=Physical%20activity%20can%20help%20you,of%20cognitive%20decline%2C%20including%20dementia. Physical Activity Boosts Brain Health], [[Centers for Disease Control and Prevention]] website</ref>

According to the [[Centers for Disease Control and Prevention]] (CDC): "Physical activity can help you think, learn, problem-solve, and enjoy an emotional balance. It can improve memory and reduce anxiety or depression. Regular physical activity can also reduce your risk of cognitive decline, including dementia."<ref>[https://www.cdc.gov/nccdphp/dnpao/features/physical-activity-brain-health/index.html#:~:text=Physical%20activity%20can%20help%20you,of%20cognitive%20decline%2C%20including%20dementia. Physical Activity Boosts Brain Health], [[Centers for Disease Control and Prevention]] website</ref>

=== Bobby Fischer and exercise to increase mental performance ===

=== Bobby Fischer and exercise to increase mental performance ===