‘Exercise protects kids from stress’

Mar 10, 2013 |

Exercise may play a key role in helping children cope with stressful situations, according to a new study. When children were exposed to everyday stressors, the study found sedentary children had surges of cortisol — a hormone linked to stress. The most active children had little or no increase in their cortisol levels in similar situations.

“The findings suggest physical activity plays a role in mental health by buffering children from the effects of daily stressors, such as public speaking,” said the study’s lead author, Silja Martikainen, of the University of Helsinki, Finland.
The cross-sectional study monitored physical activity and cortisol levels in a birth cohort of eight-year-old children. The 252 participants wore accelerometer devices on their wrists to measure physical activity. Saliva samples were taken to measure cortisol levels.

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