You didn’t know your body was a meathead, did you? When it shoves glycogen inside of the muscle, the glycogen is locked away solely for the muscle! Ha! Screw you brain, the muscle is more important than you!
Except, for most people alive and breathing, the muscle isn’t more important than the brain. And this is why most human beings are wired for fat gain. Body fat can keep you alive under times of harsh nutritional duress. It can be broken down into ketone scraps and give the brain what it needs. But muscle glycogen has no chance for that fate.
So it seems your body would rather be stricken physically inept yet breathing and cognizant if it meant staying alive. This is starvation 101. Can’t do much physically, but at least you’re still ticking and tocking.
Doesn’t make sense to store precious energy inside a permanently locked vault. You wouldn’t put money in a permanently locked vault, would you?
Luckily, muscle isn’t a permanently locked vault. It’s locked under most circumstances, but not all. And your body is more than willing to bust open the vault when needed.
Muscle glycogen is muscle fuel (shocking, I know) of a certain flavor. So how to open the vault? Use your muscles a certain way.
You eat. You eat enough. You have excess. Brain and sedentary logic says, “Flinch excess to body fat. Because, ketones and all that jazz. Fat is the safest place to put the extra in the long term.”
But now you throw yourself in a city rampant with lions and where you have to regularly sprint (not jog or walk, for reasons you’ll come to know soon) to stay alive. What if you have to run away from lions and you don’t stock your muscle with energy? Suddenly, there’s conflict.
On the one hand, you have the safe bet in body fat storage. On the other hand, if you don’t cater to your muscle, you’ll get eaten by a lion. When you get excess, where’s the best place for storage?