To learn more about how exercise affects the brain, scientists in Ireland recently asked a group of sedentary male college students to take part in a memory test followed by strenuous exercise. First, the men watched a rapid-fire lineup of photos with the faces and names of strangers. After a break, they tried to recall
"I enjoy fishing. I enjoy walking. Those are very good, but they don't give you a complete workout. This gives you a complete workout."
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