The Happy Pod: The teenager faster than a calculator

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Meet the 14-year-old human calculator. Aaryan Shukla has won the Mental Calculation World Cup twice and holds world records. Also, the breakthrough treatment which can cut the risk of dying from cervical cancer and we go to the twin capital of the world. (Photo: Aaryan Shukla holds up his Guinness World Records certificate. Credit: Aaryan Shukla Human Calculator)