Originally published November 14 2003
Physical exercise releases powerful, addictive brain chemicals
by Mike Adams, the Health Ranger, NaturalNews Editor
Hooked on exercise? It's no joke: you can be addicted to the exercise-induced production of brain chemicals, says this research...
A study published today in the journal Neuroscience, journal of the International Brain Research Organization, confirmed that exercise increases the chemical BDNF -- brain-derived neurotrophic factor -- in the hippocampus, a curved, elongated ridge in the brain that controls learning and memory. BDNF is involved in protecting and producing neurons in the hippocampus. Mice bred for 30 generations to display increased voluntary wheel running behavior -- an "exercise addiction" -- showed higher amounts of BDNF than normal, sedentary mice. "These mice are more active than wild mice," Rhodes said, referring to the mice as small and lean, and seemingly "addicted" to exercise.
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