Playing Tackle Football Before Age 12 May Be Bad for the Brain

May 3, 2018 · Posted in Risk Factors 

a football on grass

A 2017 study found that men who began playing American tackle football before age 12 were more likely to have depression, apathy, problems with executive functioning, and behavioral issues in adulthood than their peers who began playing football after age 12. Duration of football play did not seem to matter—those men who stopped playing football after high school were just as likely to be affected in adulthood as those who went on to play football in college or professionally.

The study by Michael L. Alosco and colleagues was published in the journal Translational Psychiatry. It included 214 men (average age 51) who had played football in their youth, but not other contact sports. The men reported their own experiences with depression, apathy, cognitive function, and behavioral regulation. Those who began football before age 12 were twice as likely to report impairment in behavioral regulation, apathy, and executive function than those who began playing later. Those who started younger were also three times more likely to have clinical depression in adulthood than those who started older.

According to Alosco and colleagues, between ages 9 and 12, the brain reaches peak maturation of gray and white matter volume, and synapse and neurotransmitter density also increases. The repeated head injuries that can occur during youth football play during this time may disrupt neurodevelopment, with lasting negative effects.

One drawback to the study was that recruitment was not random—men who volunteered for the study might have done so due to a recognition of their own cognitive problems. However, the results suggest more study is needed, and caution is encouraged when making decisions about youth football participation. Some youth football leagues have begun placing greater limits on the type of contact allowed during play.

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