Entries in Activity (2)


Kids' Close Friends Influence How Active They Are

JupiterImages/Brand X Pictures(NASHVILLE, Tenn.) -- Kids can pass a lot of things around to each other -- germs, colds, a bad case of the giggles. Now, new research suggests that their activity levels, too, may be contagious.

A study from Vanderbilt University found that when children have friends that are more active, they themselves are also likely to be more active.

Moreover, when children have close friends that regularly engage in vigorous activity they will try to keep up.

Eighty-one children between the ages of 5 and 12 were enrolled in two afterschool programs and followed over 12 weeks. During that time children were asked with whom they were friends, and their level of activity was measured using a device called an accelerometer.

The findings showed that when kids were playing with others who had higher level of activity, they were more likely to increase their own levels of physical activity.

"They have conducted hundreds of trials across the nation that has not changed kids eating behavior," said Sabina Gesell, professor of pediatrics at Vanderbilt University School of Medicine in Nashville, Tenn. and lead study author.

"We needed a new novel approach... In order to move our intervention against obesity to a new level," Gesell said. "Now we have the evidence to move forward."

Copyright 2012 ABC News Radio


Is Your Cell Phone Affecting Your Brain?

Photo Courtesy - Getty Images(BETHESDA, Md.) -- We all know about the studies that say cell phone use could cause brain cancer. But a new study poses a different question: Does the use of mobile phones increase brain activity?

A randomized trial of 47 healthy participants measured brain activity by assessing the glucose metabolism using positron emission tomography (PET) scans – imaging that helps doctors assess how organs and tissues are functioning. The scans were performed under two conditions: when the cell phone was on and actively transmitting electromagnetic waves, and when the phone was off and not transmitting the electromagnetic waves.

The images were then used to analyze the association between brain activity and electromagnetic waves emitted from the cell phone. Activity in the brain closest to the antenna was approximately seven percent higher compared to the rest of the brain.

The authors of the study – conducted by the National Institute of Health and published in the medical journal JAMA – concluded that the human brain is sensitive to electromagnetic waves from cell phone exposure. Their conclusion, however, does not indicate what the increase in brain activity could mean in the short or long term.

Copyright 2011 ABC News Radio

ABC News Radio