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Another Reason to Get Moving

Hitting the treadmill will improve your mood. In fact, it restores your energy and realigns your brain chemistry.

Most of us can think of dozens of reasons not to exercise.
You're already tired; how can you summon the energy to move more?
It takes time out of a busy day. It's cold out. Your knee
hurts.

But the evidence keeps rolling into my inbox. Researchers have
found a few more reasons why we should do it.

Some of the most impressive evidence concerns the ability of
exercise to keep our moods stable. Study after study shows that exercise
combats depression. It lifts your mood, restores your energy, realigns
your brain chemistry—and the price is unbeatable. It costs nothing.
Physical activity works at least as well against mild to moderate
depression as any other treatment.

Exercise also changes your perception of yourself. It provides a
sense of personal mastery and positive self-regard.

We're not talking here about Olympian levels of activity.
When it comes alleviating depression, it's not at all necessary to
go for the burn. All it takes is 30 minutes of aerobic exercise three
times a week. That means walking. Researchers at Duke University have
found that 50 minutes of exercise a week brings about a 50% decrease in
the likelihood of being depressed.

Now more news of what exercise can do. It boosts blood flow to
the brain, which allows you to be more mentally engaged. Exercise not
only gives you physical energy, it boosts your mental energy. It makes
you more alert. These benefits, need I point out, are aside from the
ability of exercise to protect the heart and balance body weight.

Studies were performed on a few dozen monkeys that
were put on a treadmill for five days a week over 30 weeks. They were
compared with animals who remained sedentary.

On tests of mental performance—the animals had to find a
treat placed under toys—the exercisers shone. "Tests showed
that animals in the exercise group were more aroused, alert and engaged
than animals in the control group," the researchers reported
recently. What's more, the exercisers learned how to navigate the
tests of mental performance at a much faster rate.

So do yourself and your brain a favor, go out for a walk.