The Indoor Soccer Zone in Dallas where hundreds of kids kick the ball around for some fun and games.

They rarely head the ball at this age and maybe that's a good thing because researchers found that soccer players who headed the ball a lot had brain injuries almost like those found in patients with concussions.

Soccer mom Jocelynn Simpson noted that some kids now wear soccer helmets.

"We have players on our team who wear those and both of them have had concussions so I don't know how much they help,” Jocylynn said. “It may be something that might help."

Researchers at Albert Einstein College of Medicine Montefiore Medical Center in New York used a new MRI imaging system to scan the brains of more than 30 amateur soccer players and found the ones that headed the ball 1,000 to 1,500 times a year had significant brain injury.

Angela Mix is a doctor at Texas Health Plano said the study shows why baseline testing is becoming more important.

"Any type of blow to the head could potentially cause brain damage or cognitive impairment meaning decreasing

If heading a soccer ball 1,500 times a year sounds like a lot you may want to think again--for someone who plays regularly it can mean just a few headers a day.

Researchers say the impact isn't enough to tear nerve fibers in the brain but the steady drumbeat of heading a ball can lead to cell degeneration.

While the study didn't focus on kids some doctors consider them to be at the most risk because their young brains are still developing.

Dr. Mix agreed.

"I think that is the concern, a recent conference I attended I think the younger the player is the more of a concern and the younger the player especially if they are under 11, you know, 9, 10, 11 years old, I think they are at a higher risk of getting injured."

Adrienne Nelson played soccer in college--now her ten year old son loves the sport. She wasn't worried then and she's not worried now.

"I am just not concerned about it,” Adrienne said. “I headed the ball quite a bit when I was playing and when you look at the study, 1,500 to 2,000 head balls in a year, that's quite a lot. At this age level they don't head the ball often."

The fear is that at that age, it may not take much.