We know specific genes are turned on in specific cells, but we don't know to what extent this happens.
“You know, my family and friends have never been yes-men: 'Yes, you're doing the right thing, you're always right.' No, they tell me when I'm wrong, and that's why I've been able to stay who I am and stay humble.”
“I don't feel any pressure to lose weight - and in any case, if I didn't have my food I'd be a nasty piece of work and wouldn't be able to function.”