Do our voices change as we age?

Is there a cure for flu? How far are we from designer genes? Do our voices change as we get older? Plus, bioengineered bones!
12 May 2017
Presented by Chris Smith

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Is there a cure for flu? Can your genetic engineering make you smart? How far are we from designer genes? Can we cure HIV? Do our voices change as we get older? Plus, bioengineered bones!

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