What physiological changes occur in the human body during fasting?

During fasting, your body switches from using food for energy to using stored energy, like a backpack full of snacks.

Your body becomes a smart explorer, and instead of eating every day, it starts looking inside itself for fuel.

At first, your body uses up the sugar in your blood, kind of like emptying out the candy from your pockets. Once that’s gone, it moves on to using stored glycogen in your liver and muscles, which is like opening a snack bag you’ve saved for later.

After a while, when those snacks are also gone, your body starts breaking down fat stores, turning them into energy, just like melting butter from a stick to light a candle. This process makes your body feel lighter, like after eating too much cake and then going on a short walk.

Your body also gets clever with waste, it starts cleaning up old parts of cells and using them for energy, kind of like tidying up your room to make space for new toys. This helps you feel more alert and even gives your brain a little boost!

So, fasting is like giving your body a mini vacation from eating, it switches gears and starts being smart about how it uses its stored snacks.