Exercise Leads to Bigger Brains

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After a while I just get antsy and I want to move around – cause I start to get stiff and it’s like, I want to get up and walk around.

– Eric, 18 years old

In an effort to improve test scores, a great many schools are taking time away from physical education and using it for more time in class. But a new study using magnetic resonance imaging to measure brain development in kids shows that physical fitness leads to better learning and memory skills.

Fourth grade teacher Katherine Bennett takes her students out for a five-minute walk after a long lesson.

“I found that when my children start yawning and they start not paying attention, then one way I can refocus those children is to take them out for a brief, little fun walk,” she says. “And by the time we’ve got them back into the room again, they’re ready to study some more.”

In fact, new research from the University of Illinois, published in the journal Brain Research, finds a link between physical fitness and brain development in children – particularly the size of the hippocampus, which is associated with memory and learning.

“The area of the brain that’s involved in cognitive learning is the same area that’s stimulated by physical activity, so the two seem to work hand in hand,” explains Jackie Lund, PhD, past president of the National Association for Sport and Physical Education.

Former U.S. Surgeon General, Dr. David Satcher agrees. “Children who are physically fit do better academically. They perform better on standardized examinations, they concentrate better, on the other hand, children who are obese are four times as likely to be depressed, very likely to be absent from school.”

What’s more, many kids say it’s easy to get distracted if you have to sit still, all day long, in school.

“After a while I just get antsy and I want to move around – cause I start to get stiff and it’s like, I want to get up and walk around,” complains 18-year-old Eric. “But in class you can’t really get up and walk around,”

That’s why, experts say, if your child’s school does not provide vigorous physical education, you have to speak up.

“If parents go out and demand quality physical education, where their kids are learning and they’re moving and they’re involved in activities that are going to create the next steps for a life time, then they will be heard,” says Lund.

What We Need To Know

The National Association for Sport and Physical Education (NASPE) offers the following statistics and recommendations to support that physically active children “learn better”:

  • Elementary school students should participate in a minimum of 60 minutes of moderate and vigorous activity every day.
  • Middle and high school students should participate in 30 minutes of physical activity daily.
  • Play is an essential part of children’s social development.
  • Children learn how to cooperate, compete constructively, assume leader/follower roles and resolve conflicts by interacting in play.
  • Only 25% of American children participate in any type of daily physical activity.
  • More than 300,000 deaths are caused annually by a lack of exercise and a poor diet.

How much exercise does your child need? According to the American Heart Association (AHA), a “healthy level” of physical activity requires regular participation in activities that increase heart rates above resting levels. An active child plays sports, participates in physical education classes, performs regular household chores, spends recreational time outdoors and regularly travels by foot or bicycle.

The AHA offers the following guidelines for maintaining healthy physical activity in children:

  • Encourage regular walking, bicycling, outdoor play, the use of playgrounds and gymnasiums and interaction with other children.
  • Allow no more than two hours per day to watch television or videotapes.
  • Promote weekly participation in age-appropriate organized sports, lessons, clubs or sandlot games.
  • Have your child participate in daily school or day-care physical education that includes at least 20 minutes of coordinated large-muscle exercise.
  • Make sure your child has access to school buildings and community facilities that enable safe participation in physical activities.
  • Provide opportunities for physical activities that are fun, increase confidence and involve friends and peers.
  • Organize regular family outings that involve walking, cycling, swimming or other recreational activities.
  • Engage in positive role modeling for a physically active lifestyle.

Experts say it is important for parents to remember that physical activity doesn’t have to be strenuous to be beneficial.

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