--- title: Concussions in Kids: Every Impact Causes Brain Changes description: In a study on brain trauma that's not quite a concussion, researchers documented changes in the brains of young children playing football canonical: https://time.com/4539398/football-concussion-brain-trauma/ author: Alice Park article:opinion: false article:content_tier: free article:published_time: 2016-10-24T04:00:24.000Z article:modified_time: 2026-08-04T07:55:01.755Z article:section: Health og:title: How One Season of Football Affects a Child’s Brain og:description: In a study on brain trauma that's not quite a concussion, researchers documented changes in the brains of young children playing football og:url: https://time.com/4539398/football-concussion-brain-trauma/ og:site_name: TIME og:image: https://static.time.com/v3/assets/bltea6093859af6183b/blt277567535902ae85/6988aaf2a988ca37556b9d79/gettyimages-180564312.jpg?branch=production&width=1200&quality=75&auto=webp&crop=16:9 og:image:width: 3687 og:image:height: 2074 og:image:alt: X-Ray image of a brain in a football helmet. og:type: article twitter:card: summary_large_image twitter:title: How One Season of Football Affects a Child’s Brain twitter:description: In a study on brain trauma that's not quite a concussion, researchers documented changes in the brains of young children playing football twitter:image: https://static.time.com/v3/assets/bltea6093859af6183b/blt277567535902ae85/6988aaf2a988ca37556b9d79/gettyimages-180564312.jpg?branch=production&width=1200&quality=75&auto=webp&crop=16:9 ---  # How One Season of Football Affects a Child’s Brain > Sponsored content. 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Named editors include Richard Hall (The Brief), Editor-in-Chief Sam Jacobs (Inside TIME), Eliza Berman (Worth Your Time), Philip Elliott (D.C. Brief), Justin Worland (Future Proof) and Harry Booth (In the Loop). Health Matters is written by TIME's health desk. #### How do I sign up for a TIME newsletter? Go to time.com/newsletters, choose the newsletters you want and enter your email address. There is no cost and no subscription requirement. ### Sources * TIME Newsletters: [time.com/newsletters](/c/time-nl-network-2026q3/newsletters?i=45fc7e12-0e2b-4914-852d-d32feb4dd326&cr=time-nl-network-2026q3-v1) ## Video: 40% of Ex-NFL Players Had Brain Injuries [Watch (HLS stream): 40% of Ex-NFL Players Had Brain Injuries](https://cdn.jwplayer.com/manifests/JMouzlM7.m3u8) (1:00)  _Published 2016-04-11. For years, the NFL has stood by the contention that there is no direct evidence proving that playing football is linked to traumatic brain injury (TBI) or the devastating brain disorder chronic traumatic encephalopathy (CTE), which is increasingly be_  by [Alice Park](https://time.com/author/alice-park/)  ## Alice Park Senior Correspondent Oct 24, 2016 4:00 AM UTC  Chris Parsons—Getty Images  by [Alice Park](https://time.com/author/alice-park/)  ## Alice Park Senior Correspondent Oct 24, 2016 4:00 AM UTC Research is mounting that concussions have devastating impacts on [professional football players in the NFL](http://time.com/4270952/nfl-concussion-research-flaws/)—and the symptoms [don’t happen overnight](http://time.com/4508428/concussion-brain-injury-diagnosis-rates/). The bad effects from concussions can[ continue years after the trauma](http://time.com/4289745/nfl-concussion-symptoms-treatment/), and brain experts say that damage to delicate neurons can also accumulate over time, even with repeated head injuries that don’t reach the level of concussion. That’s why Dr. Christopher Whitlow, chief of neuroradiology at Wake Forest School of Medicine, and his colleagues investigated brain changes in young players. Whitlow wanted to better understand how non-concussive trauma to the head, [the kind caused by normal football play](http://time.com/3611146/football-head-impacts-can-cause-brain-changes-even-without-concussion/), affects the brain. In a study published in the journal _Radiology_, his team reports that although these changes are subtle, they are visible in the brains of young players. The study involved 25 boys between ages eight and 13 years who played a single season of football. The players agreed to wear special [helmets](http://time.com/3190/some-helmets-better-than-others/) that tracked impacts to the head and had MRIs done at the beginning and end of the season to note any differences resulting from their season of play. Whitlow found that the more impacts a player had to the head, the more changes in a part of the brain called white matter, which is made up of insulated neurons that form the basis of communication between different parts of the brain. Such changes are concerning since the white matter of the brain is still developing and evolving during this age, and changes to its normal trajectory might have lasting effects on many aspects of brain function, from cognition to personality to behavior. For now, it’s not clear what these changes may mean, or whether they have any impact on thinking or development. “There’s a lot we don’t know about the changes,” says Whitlow. “We don’t know if they persist. We don’t know if a couple weeks after the season ends, they go away.” The differences are so subtle that if a brain expert were to look at the MRIs of the players after the season ended, they would not necessarily identify them as having experienced brain trauma. The changes are only evident when compared to the original brain scans. Whitlow is following some of the players for a longer period of time to see if continued play for additional seasons increases the changes, and whether these changes start to impact their cognitive functions. He’d like to follow more players for five years to better understand the impact of these white matter alterations. For now, he says, the results shouldn’t discourage children from being physically active, or even from playing football. But, he says, “we should do simple things now to protect children, like knowing the signs and symptoms of concussion and teaching them to children, so if they are injured on the field, they can get help from health professionals right away.” ## Transcript [00:52] [ MUSIC ] ```json [{"@context":"https://schema.org","@type":"NewsArticle","@id":"https://time.com/4539398/football-concussion-brain-trauma/","mainEntityOfPage":{"@type":"WebPage","@id":"https://time.com/4539398/football-concussion-brain-trauma/"},"headline":"How One Season of Football Affects a Child’s Brain","datePublished":"2016-10-24T04:00:24.000Z","dateModified":"2026-08-04T07:55:01.755Z","description":"Researchers documented changes in the brains of young children playing just one season of football","url":"https://time.com/4539398/football-concussion-brain-trauma/","keywords":["Brain","concussions","traumatic brain injury"],"thumbnailUrl":"https://static.time.com/v3/assets/bltea6093859af6183b/blt277567535902ae85/6988aaf2a988ca37556b9d79/gettyimages-180564312.jpg?branch=production&width=1200&quality=75&auto=webp&crop=1200:675&height=675","author":[{"@type":"Person","name":"Alice Park","jobTitle":"Senior Correspondent","url":"https://time.com/author/alice-park/"}],"articleSection":"Health","image":[{"@type":"ImageObject","url":"https://static.time.com/v3/assets/bltea6093859af6183b/blt277567535902ae85/6988aaf2a988ca37556b9d79/gettyimages-180564312.jpg?branch=production&width=1200&quality=75&auto=webp&crop=1200:675&height=675","width":1200,"height":675,"headline":"X-Ray image of a brain in a football helmet.","caption":"X-Ray image of a brain in a football helmet.","creditText":"Chris Parsons—Getty Images","representativeOfPage":true}],"publisher":{"@type":"Organization","name":"Time","url":"https://time.com/","logo":{"@type":"ImageObject","url":"https://time.com/images/logo.png","width":528,"height":156},"foundingDate":"March 3, 1923","sameAs":["https://www.facebook.com/time","https://www.instagram.com/time/?hl=en","https://twitter.com/time","https://www.pinterest.com/timemagazine"]}},{"@context":"https://schema.org","@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"item":{"@id":"https://time.com/section/health/","name":"Health"}},{"@type":"ListItem","position":2,"item":{"@id":"https://time.com/tag/brain/","name":"Brain"}},{"@type":"ListItem","position":3,"item":{"@id":"https://time.com/4539398/football-concussion-brain-trauma/","name":"How One Season of Football Affects a Child’s Brain"}}]},{"@context":"https://schema.org","@type":"VideoObject","name":"40% of Ex-NFL Players Had Brain Injuries","description":"For years, the NFL has stood by the contention that there is no direct evidence proving that playing football is linked to traumatic brain injury (TBI) or the devastating brain disorder chronic traumatic encephalopathy (CTE), which is increasingly be","thumbnailUrl":"https://cdn.jwplayer.com/v2/media/JMouzlM7/poster.jpg?width=720","uploadDate":"2016-04-11T23:56:34.000Z","contentUrl":"https://cdn.jwplayer.com/manifests/JMouzlM7.m3u8","embedUrl":"https://time.com/4539398/football-concussion-brain-trauma/","duration":"PT1M","potentialAction":{"@type":"SeekToAction","target":"https://time.com/4539398/football-concussion-brain-trauma/?jw_start={seek_to_second_number}","startOffset-input":"required name=seek_to_second_number"}}] ```