Stories about millionaires doing wacky things to decrease their biological age - like plasma transfusions with their teenage sons - have been doing the rounds over the last few years. But extending your lifespan can be done cheaply and easily.

This week, Francesca and Louise talk to Dr Nicholas Koemer about the study he was a co-author on that looked at the easiest ways to change your lifestyle. And they talk with NZ Herald writer Joanna Wane to share what she learned from a year spent trying to extend her lifespan.