Why are there so many multiples in American elementary schools right now? This episode explores the connection between multiples and fertility. First, hear from two CNN anchors you probably already wake up with Alisyn Camerota and John Berman - who both happen to be the parents of twins - on what it's like to parent multiples. Sanjay also talks with Dr. Lucky Sekhon, a fertility specialist, who explains the rapidly changing medicine behind fertility treatments.

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