How Does Insulin and Glucagon | Physiology | Biology | FuseSchool Work?

Your body has two special helpers, insulin and glucagon, that work together to keep your energy levels just right, like a team keeping a seesaw balanced.

Imagine you're playing with a seesaw at the park. One side is your blood sugar (the fuel in your blood), and the other side is your body’s stored energy (like snacks in your backpack). When you eat a big meal, your blood sugar goes up, it's like adding weight to one end of the seesaw.

That’s when insulin jumps in. Insulin is like a friendly guide who helps your body take extra fuel from your blood and store it away as snacks for later. It’s like telling your body: “We’ve got enough now, save some for tomorrow.”

But when you’re running around or playing all day, your blood sugar drops, it's like the seesaw tipping the other way.

That’s when glucagon steps in. Glucagon is like a clever helper who tells your body: “Time to take out the snacks and refuel!” It helps your body turn those stored snacks back into fuel so you can keep playing.

Together, insulin and glucagon are like best friends, one stores energy when you have too much, and the other brings it back when you need it.