[thedoc (OP)]

Jimmy Barnes asked the Naked Scientists:
   Hi Naked Scientists
I'm a big fan of your wonderful podcasts.
Kat Arney said on Tuesday's podcast that we have 37 trillion cells in our body, 5 billion die and are made each day, and that makes 5 million per second.  
Well, it doesn't.  5 million per second means 432 billion per day.  So, which is correct, Kat?
Love your work,
Jimmy Barnes
What do you think?