Dr Michael Mosley
"The reality is I force myself out there, I sweat a lot and never at any point do I say 'boy, this [exercise] is enjoyable.' I quite like the moment when I stop."
"I think up until now I've just been thinking, just been relying on the youth to take care of [my fitness]. But I know at some point, which would be very soon, I think I need to start to pick it up."
"I have been overweight most of my life and to go to a gym, I've had several memberships ... to achieve fitness and weight loss seems unattainable for me."
Prof. Tim Olds
"Over 50 per cent of adults say they're meeting the [exercise] guidelines … but when you measure them using devices like fitbits, it comes out at much, much less - perhaps 10 per cent actually meet it."