Well it's not rocket science and with ALL this wonderful scientific information, we've been given, I've "cracked it" at last. Buy a giant "Hamster" wheel and install it in your living room, lock yourself in that and jog around it 24 / 7 and don't eat ANYTHING and you'll live FOREVER..............................oh and you'll probably be able to produce some clean, renewable energy; as a bonus..........SORTED !!