Sign up for the TODAY newsletter

You have successfully subscribed to the TODAY newsletter.

Subscribe now and get trending stories, celebrity news and all the best of TODAY.

Is football safe for kids? Study looks at brain changes

by Stephanie Gosk, Tracy Connor, Aliza Nadi and Hannah Rappleye / / Source: TODAY

Get the latest from TODAY

Sign up for our newsletter

After 25 years of playing football, six of them in the NFL, former Minnesota Viking Greg DeLong feels like a "walking time bomb" who could end up with brain disease from all the hits he took on the field.

And now DeLong has another reason to worry: His 12-year-old son Jake has followed him onto the gridiron — and is part of a groundbreaking study that found brain changes in children after just one season of suiting up.

Get the latest from TODAY

Sign up for our newsletter

The more head blows a child sustained, the more changes were seen in their brain tissue, according to the study released Monday. The effect was seen even in young players who did not have a concussion.

Although the preliminary findings don't show whether the brain changes are permanent or will cause disease, they have some parents like DeLong questioning whether the sport is worth the risk.

Former Minnesota Viking Greg DeLong feels like a "walking time bomb" from all the hits he took. Now his son is part of a groundbreaking study that finds brain changes in children after just one season of football.NBC

"Football's important to us, but there are other things out there that are more important," he said.

Three million American kids take part in tackle football programs, and research has largely focused on the long-term effects of concussions, a form of traumatic brain injury.

A team from Wake Forest Baptist Medical Center decided to look beyond concussions to the hundreds of less serious head blows a player might receive during practices and games over the course of a season.

"This is important, particularly for children, because their brains are undergoing such rapid change, particularly in the age category from maybe 9 to 18. And we just don't know a lot of about it," said Dr. Chris Whitlow, one of the lead researchers.

RELATED: NFL Commissioner Roger Goodell to reluctant football parents: We're making the game safer

The Wake Forest group studied 25 players between the ages of 8 and 13 in the South Fork Panthers youth football program in Winston-Salem, North Carolina.

Each boy was given a helmet outfitted with sensors that measured the frequency and severity of impacts — 60 percent of them absorbed during practice — and transmitted the information to a laptop on the sidelines.

Players from the South Fork Panthers youth football program in Winston-Salem, North Carolina, were outfitted with sensors to measure the severity of head impacts.NBC

Dr. Alex Powers, a pediatric neurosurgeon involved in the research, said it was surprising to see how forceful the grade-schoolers' hits were.

"They are hitting at extremely high levels," he said.

The collected data was analyzed against pre-season and post-season MRIs of the players' brains. The high-tech scans looked for tiny changes in white matter, which is the tissue that connects the neuron-rich gray matter, the researchers said.

"We have detected some changes in the white matter," Whitlow said. "And the importance of those changes is that the more exposure you have to head impacts, the more change you have."

RELATED: 'No head trauma is good head trauma': The impact of tackle sports on young kids

Just as important, Whitlow said, are the questions unresolved by the study.

"Do these changes persist over time or do they just simply go away? Do you get more changes with more seasons of play? And most importantly, do these changes result in any kind of long-term change in function like memory or attention or anything that would be important in your ability to function day to day?"

Answers may be years away. For now, all the Panthers parents know is that based on the study published by the journal Radiology, something is happening to their children's brains during the season.

Kindra Ritzie-Worthy has two sons who play, 13-year-old Jahvaree and 11-year-old Jahnaul. She said their love of the sport is "beyond words."

"They bring the football to church. They bring the football to track practice," she said. "Actually, my oldest — I found out he was sleeping with the football."

RELATED: Concussion fears and all, one mom's defense of youth football

Ritzie-Worthy said she frets about her boys' safety, but the study isn't making her have second thoughts about football. Sports, she said, motivates her sons to keep up their grades and teaches them how to chase their dreams.

"Worth the risk?" she said. "I say absolutely."

DeLong, who has seen NFL alums like himself felled by the brain disease chronic traumatic encephalopathy, said he wishes the Wake Forest research existed three decades ago when he was a young man.

Although he is troubled by the initial findings, he's torn about whether to act on them. He made Jake take a two-year break from football because of headaches, but then allowed him to return to the sport this year.

"Until he stops loving football, he's gonna continue to play," DeLong said.

Then he threw out a caveat.

"If there's a change in our son's scan at the end of this season, we're probably gonna pull him," he said. "It's just not worth it."

His hope is that the research can be used to retool drills and rules to protect all the kids who trot out onto the field with Super Bowl fantasies in their heads and a drive to crush the competition in their hearts.

"You're gonna get hurt," DeLong said. "It's a bunch of gladiators out there. It's a very aggressive game. You can't take that out of football. But you can make it safer."

Get the latest from TODAY

Sign up for our newsletter
MORE FROM today

Have feedback?

How likely are you to recommend today.com to a friend or colleague?

0 = Very unlikely
10 = Very likely
Please select answer

Is your feedback about:

Please select answer

Thank you!

Your feedback has been sent out. Please enjoy more of our content.

We appreciate your help making today.com a better place.