Learning happens when connections are made between nerve cells. When the body is inactive for 20 minutes or longer, there is a decline in neural communication (Kinoshita, 1997). This is why spending hours sitting in front of the television or playing video games is so harmful, especially for children with growing brains. In the classroom, this means that lessons that require students to sit and attend for long periods of time can be counterproductive.
Lisa Ann de Garcia, MA, MEd.