“Mark Vink is a physician in the Netherlands who suddenly fell ill with chronic fatigue syndrome (ME/CFS). He wasn’t just your typical physician; he also happened to have a brown belt in judo, was the former captain of a Dutch national field hockey championship team and was a marathoner and triathlete. In other words, the guy was a stud who loved to test himself physically – the last person anyone would ever expect to get ME/CFS. Or end up bed bound. Or end up using a six yard tramp from his bed to the bathroom to test his exercise capacity. But that’s what happened. Mark Vink’s ME/CFS story – like many stories – is so striking in its suddenness and so devastating in its comprehensive that it beggars the mind to think that anyone could believe his downfall could have other than a physiological cause.”