You have to eat right. I eat a lot of vegetables. Keep a very, very healthy diet. It translates to how your body feels. The better your body feels, the better endurance and stamina you're going to have.
On banks, I make no apology for attacking spivs and gamblers who did more harm to the British economy than Bob Crow could achieve in his wildest Trotskyite fantasies, while paying themselves outrageous bonuses underwritten by the taxpayer. There is much public anger about banks and it is well deserved.