No Exercise Actually Does Affect Your Brain

One of the reasons you ride like a maniac–or even semi-maniac, is because you know it feels good and helps you retain your form.

But what happens to your brain when you don’t exercise?

A new study is showing that lack of exercise not only leads to disease and illness, but also hurts your brain’s functioning.

Based on studies of rats (whose brains closely mimic ours,) neurons of the brains of sedentary rats had sprouted more tentacle like branches making them more sensitive and apt to zap scattershot messages into the nervous system, reported the NY Times today.

The neurons had changed in ways that made them likely to overstimulate the sympathetic nervous system, potentially increasing blood pressure and contributing to the development of heart disease.

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