Woken worms and crowd-funding against cancer by Ian Woolf, Derek Muller talks about making his new film: Vitamania. Production checked by Charles Willock, Presented and Produced by Ian Woolf Support Diffusion by making a contribution bitcoin: 1AEnJC8r9apyXb2N31P1ScYJZUhqkYWdU2 ether: 0x45d2cd591ff7865af248a09dc908aec261168395