Why do people stop growing taller?

Kids grow super fast and get taller and taller and taller and then – all of the sudden they stop! How do our bodies know when it’s time to stop? Why don’t we just keep growing until we reach the sky? We asked Dr. Frank Rhame to help us find the answer.

Kids grow super fast and get taller and taller and taller and then – all of the sudden they stop! How do our bodies know when it’s time to stop? Why don’t we just keep growing until we reach the sky? We asked Dr. Frank Rhame to help us find the answer.
Got a question that you think is a tall order? Send it to us at BrainsOn.org/contact, and we’ll answer it shortly. 

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Smash Boom Best is a debate show for kids and families from the makers of the award-winning podcast, Brains On! Every episode takes two cool things, smashes them together and lets you decide which is best.


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A history show for the whole family! Every episode explores the origin of just one thing — like sandwiches, video games, clocks and more — while teaching listeners to think critically about history.


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Our mission is to encourage kids’ and curious adults’ natural curiosity and wonder using science and history…but there’s no age limit on curiosity, and episodes of Brains On can be enjoyed by anyone.


Why do people stop growing taller?

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