Does Exercise Change Your Brain?

Does Exercise Change Your Brain?

Miss Olga Kotelko, aged 93 years, was as fine an example as you may find on Earth of a remarkable nonagenarian track-and-field athlete. How did she accomplish this in late life, or was she one of these statistical outliers? Although scientists have studied her, including her brain, she does not reveal all. Gretchen Reynolds tells us what the scientists have discovered.

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http://well.blogs.nytimes.com/2015/09/02/physed-4/?_r=0