Body clock? Eh?

So I was vegging out on the sofa after another hard day (errr) watching telly - great, I thought, new programme on. "How to turn back your body clock". Started watching it and got very, very frightened. This bloke's liver was already seriously damaged (not nice seeing the scans, honestly!) and all. What can I say, I have my gym stuff with me today! Let's see how long that's going to last...