4-Fluoroamphetamine

4-fluoroamphetamine is a type of chemical that people sometimes use to try and change the way their brain works. Some people call it "4-FA" or "4-Fluoro."

When someone takes 4-fluoroamphetamine, it goes into their body and travels up to their brain. Once it gets there, it can cause their brain to release more of certain chemicals that can change the way the person feels or acts. Some people think this can make them feel more social or happy.

But 4-fluoroamphetamine can also be dangerous. It can cause all sorts of problems, like making your heart beat too fast or giving you a headache. And if you take too much, it can even make you really sick or hurt you.

So, it's really important to talk to a doctor or another trusted adult before you even think about taking 4-fluoroamphetamine. Remember, it's always better to stay safe and healthy than to do something that could hurt you in the long run.