In this May. 23, 2017, photo, actress and author Mayim Bialik poses for a photo in Los Angeles. Bialik plays smart on TV's "The Big Bang Theory" and is smart in real life, with a Ph.D. in neuroscience as evidence. She joins her intelligence with experience in "Girling Up: How to be Strong, Smart and Spectacular," a wide-ranging handbook on navigating the emotional and physical hurdles of growing up. (AP Photo/Damian Dovarganes)
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