Everyone is well aware of some of the benefits of regular exercise. It tones the body and helps you maintain a proper weight. It also helps to prevent osteoporosis, takes years off your physical age, and can improve your memory and intelligence performance.
A study was performed with rats in which some were not allowed to exercise, some ran on a wheel (comparable to people on a treadmill), and some were taught to navigate an obstacle course. The rats that ran on the wheel grew more blood vessels to supply the brain, and the rats that ran the obstacle course showed increased growth in brain cells. The best type of physical exercise is one that exercises both the mind and the body.11 Tennis requires physical exertion combined with mental strategy and so is an excellent example.
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