Hearts do a number of very important jobs to keep us alive. Professor Hallux is looking to see if he can create an improved heart.  But will it do all the jobs that the heart has to do?  And what are those jobs anyway?

<p>Hearts do a number of very important jobs to keep us alive. Professor Hallux is looking to see if he can create an improved heart.&nbsp; But will it do all the jobs that the heart has to do?&nbsp; And what are those jobs anyway?</p>

We're the UK's children's radio station. Listen across the UK on DAB Digital Radio, on mobile and online at funkidslive.com.

<p>We're the UK's children's radio station. Listen across the UK on DAB Digital Radio, on mobile and online at funkidslive.com.</p>

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