By eHow Health Editor
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Mental Calisthenics is the process of exercising your brain. It is equally as important to exercise your brain as it is to get physical exercise for your body. This is especially true as we age. Experts recommend that we do some form of mental calisthenics at least four times each week. Mental calisthenics increases neuron connections, the functioning speed of the brain and the energy output of the brain.
eHow Health Editor