Gut–brain axis

Imagine your tummy and your brain have a super-secret phone line! This line is called the gut-brain axis. It’s how your tummy tells your brain when you’re hungry, and how your brain tells your tummy to get ready for a yummy meal. It’s like a constant chat between two best friends, making sure everything in your body works together perfectly.

Scientists have known about this chat for a long, long time! Even over 100 years ago, a clever scientist named Pavlov noticed that just the smell of food could make a dog’s tummy start making juices, even before it ate! This showed that the brain could send messages to the tummy. Now, we know the tummy sends messages back too!

This secret phone line is super important! It helps your brain know how to handle tricky feelings, like being a little worried or excited. It can even help you remember things! When your tummy is happy and healthy, it sends happy messages to your brain, helping you feel good and ready to play and learn.

Did you know there are trillions of tiny, tiny helpers living in your tummy? They are called microbes! These little helpers are like tiny chefs who make special messages. They send these messages to your brain through your gut-brain axis. It’s like they are helping your tummy and brain stay best friends!