My friend Hans just failed in his quest to climb all of California's 14,000 peaks in 6
days. He absolutely smoked the first three days, doing 10 of the 14. and that is
He then bonked on Mt. Langley, which he thought was due to his body fat being so low.
He was also sandbagged by some unseasonably cold weather. He said that it felt like his
body fat went to zero and he couldn't warm up so he abandoned.
To give an example of how fit Hans is, a heart rate monitor said the he averaged 127
bpm during a day when he did something like 6 summits with near 10,000' of elevation
gain-wow! This is really, really low considering his speed and the altitude. He said that
on Langley he felt like his heart wouldn't beat fast enough to keep him warm.
I think that if Hans' body fat was a little higher he probably would have been okay. I
once got mine down around 3% and was always cold, and I am not usually bothered by
temperature changes. Hans must be down below 6% anyway, maybe lower. He's as tough as they
come but sometimes your body just gives you no choice.
My latest stats show me at around 9-10% at 175lbs. It would be interesting to get an
accurate reading before the challenge and during to see how it changes. For now though, I
'm going to keep exercising and keep eating.