The secret behind long bone growth - The Human Body: Secrets of Your Life Revealed - Grow - BBC

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Subscribe and 🔔 to the BBC 👉 https://bit.ly/BBCYouTubeSub Watch the BBC first on iPlayer 👉 https://bbc.in/iPlayer-Home Programme website: http://bbc.in/2fNvVC6 The extraordinary process that happens in our bodies when each of our long bones grow. #bbc