How do antibiotics kill bacteria without harming human cells?

Antibiotics are like special tools that help our bodies fight off germs without hurting us.

Imagine you have a toy box full of different toys, some are cars, some are blocks, and others are action figures. Now, suppose a group of mischievous little monsters (the bacteria) come in and start breaking your favorite toys. You need a way to get rid of the monsters without throwing out all your toys.

That's where antibiotics come in! They're like super-strong magnets that only stick to the monsters, not to your toys. These magnets (antibiotics) find the monsters (bacteria) and either trap them, stop them from moving, or even make them go to sleep forever.

But why don’t they hurt your toys? Because your toys are made of different materials than the monsters. The magnets only work on the monsters, just like antibiotics only affect germs, not our human cells.

So, while the bacteria get stuck or sleepy, our body can clean up the mess and heal!