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academic subjects while reducing class time in peripheral subjects, like and physical education. In fact, only 6 percent of American high schools offer a daily gym class. Yet a 2002 Virginia Tech study showed no reduced class time in those subjects and higher overall standardized tests.
In his latest book, "Spark: The Revolutionary of Exercise and the Brain" (2008, Little, Brown), John Ratey, a Harvard clinical regular exercise is in improving the function and performance of the brain." Ratey writes. "Exercise stimulates our gray matter to produce Miracle-Gro for the brain." That "Miracle-Gro" is a brain chemical called brain-derived neurotropic factor, or BDNF. When we exercise, our working muscles send chemicals into our bloodstream, including a protein known as IGF-1.
Once in the brain, IGF-1 orders the production of more BDNF. The additional BDNF helps new neurons and their connections grow. In addition, levels of other neurotransmitters are increased after a strenuous exercise session.associate professor of psychiatry, argues for more physical fitness for students as a cure for not only their obesity but also their academic performance."I cannot underestimate how important