>Spending 8 days in near-constant intense aerobic activity on 1 hour of sleep is likely to cause lifelong health repercussions the most dangerous part here is

>Spending 8 days in near-constant intense aerobic activity on 1 hour of sleep is likely to cause lifelong health repercussions the most dangerous part here is probably the chance of having an accident on that little sleep, but there's no need to be hyperbolic, there's very rarely lasting health repercussions to short term stress like this (physical at least) in healthy adults, soldiers go through similar conditions in training and during war. Sometimes for much longer. You'd be surprised how much your body can actually take. (and recover from)