A study out of the Medical University of South Carolina found a link between adolescent obesity and decreased learning. And because adolescents are still in the developing stage, losing weight may be able to at least stop the trend and even possibly reverse it to some extent.
One decrease in learning, as evidenced by IQ test scores, is due to a condition known as adolescent sleep apnea. Just like in adults, obese children with this condition actually stop breathing while sleeping. While each episode may only last up to 10 seconds, it can occur hundreds of times each night in a child with this condition.
Studies have found the decrease in learning is due to two results from breathing cessation: lack of oxygen to the brain and lack of quality sleep. When the child is not breathing, oxygen is not getting in the lungs, entering the blood stream and being distributed to the brain. With a lack of oxygen over time, injury to existing brain tissue can occur along with affectin