The body clock goes under the Naked Scientists' spotlight this week. We unpick the mechanisms that enable human cells, plants and even bacteria to track the time of day and alter their activities accordingly, and we hear the evidence that night work makes you put on weight and boosts your diabetes risk. In the news, how cells grafted into the eye restore sight to blind mice, the three genes that can convert scar tissue back into beating cardiac muscle following a heart attack, and electrical stimulation that returns movement to limbs paralysed by spinal injury. And on the subject of the body... Like this podcast? Please help us by supporting the Naked Scientists