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It weighs about the same as a standard bag of applies, but that’s where the similarity ends. There are just 7500 different varieties of apples, but when it comes to brains, the number is more than a million times greater than that. Neuroscientist Dr. Chantel Prat’s new book delves into just how truly unique each brain is. “The Neuroscience of You” is today’s book in our Summer Reading Series.