Meet Derek, who never took a music class in his life, but after being hit, he suddenly played the piano. Plus, almost every kid has a smartphone, but could it cause cancer in their developing brains? Dr. Oz takes a closer look.

After years of trying to get pregnant, doctors told Kelsi Pierce it would be near impossible for her to conceive a child. However, Kelsi got the surprise of her life when her mom volunteered to be her surrogate — and she found out she, too, was pregnant!

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