London (MOL): Are you sitting comfortably? Then let us begin - by saying that this is one of the worst things you can possibly do for your health. So please do yourself a big favour. Try getting out of your seat and reading this (computer screen) standing up. This may feel awkward, even downright strange at first, but it will help improve your health and even make you live longer. How do I know? Because for the past 25 years, as a British doctor and scientist working first in London and now the US, I’ve been studying the science of sitting.