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Obesity Risk Factors Tied To Screen Time For U.S. Teens

Read the article on Medpagetoday

Dr. Sears Comments:

Dr. Barry Sears

It may not be the lack of physical activity that is the consequence of increased screen time, but the dopamine response in the brain caused by a flickering screen with constantly changing images. In the absence of dopamine by screen viewing, dopamine levels will drop, and can be restored by overconsumption of calories, especially those rich in fat and refined carbohydrates.  Physical activity also increases dopamine, but eating excess junk is a lot easier and much more convenient.


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