A very long time ago, early humans called cavemen lived in a world very different from ours. They lived in caves and spent their days hunting and gathering food. These cavemen were really good at one important thing: staying together in groups.

Did you know that humans are really sensitive to light? It's true! When we see light, our bodies feel energized and awake. When it gets dark, our bodies start to feel sleepy. That's how we're naturally made!

Did you know that play has been super important for kids since way back in cavemen times? Scientists think children needed to play back then to practice important skills they needed to survive.

When your mind is wandering during boredom, it actually activates a special part of your brain that helps you solve problems. Your brain is working in a different way than when you're focused on a specific task like homework.

Dopamine is like a postman in your brain that delivers feel-good messages. When this postman delivers these messages, you feel happy and want to do more of whatever made you feel good.

Long ago, before we had any technology, people got dopamine from simple things like eating food when they were hungry, drinking water when they were thirsty, and spending time with friends and family. These activities felt good because they helped keep us alive and healthy.

Have you ever been on a teeter-totter at the playground? You know how it works - when one side goes up, the other side goes down. Well, our feelings work in a similar way in our brains!

When we don't have enough dopamine, we might notice that things we normally love don't seem as exciting or fun anymore. Maybe your favorite game doesn't seem as interesting, or activities you usually enjoy just don't feel as good.

When our brain gets lots and lots of rewards from screen time, something tricky starts to happen. Our brain begins to need more and more dopamine just to feel good. Eventually, playing with devices can become the only thing that feels really exciting.

Think of high dopamine games and apps like sugar. Just like candy, these games and apps feel really good - we all probably enjoy them, but they are a “sometimes food” and not an anytime food.

Between the ages of 10 and 19, you are in a time called adolescence. During this time, your brain is developing super fast and is extra sensitive. You might notice you're more willing to try new things, and your emotions might feel stronger than they used to.

We all naturally compare ourselves to others - this is called social comparison. It's when we look at how others behave, what opinions they have, or what they've achieved, and then compare it to ourselves. This helps us understand who we are and where we fit in.

Have you ever felt left out or worried that everyone else was doing something fun without you? That's FOMO! And while this feeling has always existed, technology has made it much stronger.

Social exclusion happens when certain groups of people that are seen as different get treated differently in ways that make them feel alone, or unimportant. You've probably seen this happen in different ways - like when kids form exclusive clubs on the playground, or when someone isn't invited to a birthday party.

Your attention is like a superpower - it's what helps you learn and create amazing things. That's why it's worth protecting!

Even though we call it "multitasking," our brains aren't actually doing multiple things at once. Instead, they're quickly switching back and forth between tasks.

Just like with food, there are healthier and less healthy choices when it comes to games. Some games give your brain lots of dopamine rewards, while others give fewer.

Social media platforms can be particularly challenging for our brains. The engineers who make these platforms actually design them to give us lots of dopamine. They want to keep our attention for as long as possible so they can show us more ads.

An unhealthy relationship with technology happens when we let it control us instead of us controlling it.

The good news is that we can absolutely enjoy technology in a healthy way! The key is being mindful and aware of what we're doing on our devices and how much time we're spending with them.

Technology safety is still a pretty new issue in our society. That means right now, it's up to us and our adults like parents or teachers -  to help us manage our technology use and stay healthy.