Myth or fact? You have enough body fat to run 10 consecutive marathons, at least, without eating?

Question

(If you were fit enough to survive): source: yet another meandering conversation...

Answer 1

Um... joycee that's what fat is. It's stored energy from food you have eaten before that you didn't need to fuel your body. Still this is not true because it is harder for your body to break down the fat than it is to digest regular food, and with the amount of energy you would be burning while running there simply wouldn't be a fast enough flow of energy from the fat.

Answer 2

fact...but the problem would not be with fat it would be with the stores of ATP in skeletal muscle. fat is converted to the cellular energy source ATP which is used for a muscular contractions. the intensity of exercise depends on whether or not the primary energy source of the body is glucose or free fatty acids. the body is always using fatty acids, glucose and amino acids for energy on the ratios change depending on the supply and demands for energy.

the body will not deplete ATP stored less than around 50-60%. so even when you are exercising and reach complete failure your body still has amble ATP stores but for some reason the body prohibits them from being used. to date scientists still have no clue as to why this phenomenon occurs. i'm sure it has something to do with all of the locked portions of the brain the we know nothing or very little about.

Answer 3

its kinda of both myth and fact. your body can go around 3 weeks without eating as long as your hydrated. NOW the thing is your body might not be able to handle a marathon. your body will run down and waste all of the energy. it is EXTREMLEY unhealthy to try and not eat. it slows your metabolism down so whenyou do finally start eating you gain the weight back 10 fold

Answer 4

It is true, but your body doesn't understand that. After using fat for a while it starts eating into muscle for its energy. So you'll end up losing more muscle than fat if you attempt this.

Answer 5

Myth..you have to eat to fuel your body and the muscle for them to work!

Answer 6

you could probably do it, but you would be in pain for sure.