I have raised this issue about extreme low weight and susceptibility to getting sick and how during the build up to a high high peak you would not want to maintain that low weight for fear of compromising training, but no one wants to bite.
Then let's take into account Wiggins' bizarre situation. He supposedly loses tons of weight, which should decrease his power, time trials better than ever, and is finally being able to beat the best time trialists for the first time in his career. Now he needs to gain weight, lots of it, to gain power to have a chance at the world's ITT.