LOL! I read his autobiography last year, he said the reason he never overdosed was because he was very methodical about his drug taking, like a scientist. He said he would always measure out his drugs precisely LOL LOL! Actually I don’t think he’s human, I saw a show on him on Netflix and the dude was chain smoking one Marlboro after another, not to mention he still drinks the hard stuff yet he gets not so much as a cold. People thought Lemmy of Motorhead was indestructible, Richards outlived even him!