Kids dream of being professional athletes, and why not? It's fun to think about being the very best in your favorite sport, not to mention earning a big salary. But in recent years, people have been looking more closely at the way some athletes get their bodies into super shape — tough enough to break records. Some athletes have admitted using steroids, which are artificial hormones that can improve strength and muscle mass. Steroids are illegal and they can cause serious health problems, but studies still show some kids, teens, and adults are willing to try them. Let's talk about what steroids are, how they can affect your body, and why it's a good idea to avoid them. What Are Steroids? "Steroids" has more than one meaning. Your body naturally produces some steroids, to help you fight stress and grow bigger during puberty. (But your body knows just the right amount that you need, so there's no need to take any extra.) There's also a type of medicine called steroids that people might take if they have pain, asthma, or a skin problem. But these aren't the kind of steroids getting attention in sports. When people say steroids (say: STARE-oydz), they often mean illegal anabolic steroids. Anabolic steroids are artificially produced hormones that are the same as, or similar to, androgens, the male-type sex hormones in the body. The most powerful of these is testosterone (say: tes-TOSS-tuh-rone). Anabolic steroids can be taken in the form of pills, powders, or injections. Anabolic steroids are always illegal, meaning that you could get arrested for buying, selling, or taking them. Some athletes take anabolic steroids because of their testosterone-like effects, such as increasing muscle mass and strength. This might sound like just a guy thing, but girls also have used steroids to get stronger and change the way they look. And it's not only professional athletes who have taken these illegal drugs. Investigations and studies have shown that teens, college athletes, and others have taken steroids. There are supplements available that contain anabolic steroids. You might see ads for these on the Internet or in the back of sports or body building magazines. Some have been banned in the United States while others are still legal. Legal or illegal, these supplements can cause health problems. Kids should not take any steroid supplement, even those that are still on the market. Dangers of Steroids Anabolic steroids cause many different types of problems. Less serious side effects include acne, oily hair, purple or red spots on the body, swelling of the legs and feet, and really bad breath. A kid or teen who takes steroids might not grow as tall as he or she was supposed to grow. Some other serious and long-lasting side effects are: premature balding dizziness mood swings, including anger and sadness seeing or hearing things that aren't there (hallucinations) extreme feelings of mistrust or fear (paranoia) problems sleeping nausea vomiting trembling high blood pressure that can hurt the heart or blood vessels over time aching joints greater chance of injuring muscles and tendons jaundice or yellowing of the skin; liver damage trouble peeing increased risk of developing heart disease, stroke, and some types of cancer These risks affect girls: increased facial hair growth deeper voice, like a man's shrinking of the breasts period changes Specific risks for boys include: shrinkage of the testicles and penis problems pain when urinating (peeing) breast development Because steroids can be injected (given in a shot), users run the risk of getting illnesses that can be passed through needles that are dirty or shared. These include HIV/AIDS and hepatitis, a serious liver disease. Though some problems may show up right away, others may not appear for years. Using Steroids Isn't Playing Fair Your health is the No. 1 reason not to use steroids or a steroid supplement. But there's another very important reason: It's just not fair. When people use steroids, it gives them an unfair advantage against others who trained and practiced without using illegal steroids. And because all levels of sports — from high school to the pros — are testing athletes for steroid use, there's a good chance the person will get caught. Then, he or she will face a lot of embarrassment and could be banned from the sport. But maybe worst of all, any achievements the athlete made while on steroids could be questioned. Someone might say, "He didn't really deserve to be on the All-Star team, he was on steroids." Or, "She shouldn't have that trophy, she was cheating." So win on your own power — without steroids. Then, you can hang on to all your honors — and your health! Back to Articles Related Articles Be a Fit Kid A lot of people talk about fit kids, but how do you become one? Here are five rules to live by, if you want to eat right, be active, and keep a healthy weight. Read More How to Compete in Sports Sometimes sports competition can make kids feel pressure. If it's too much, a kid might not have as much fun as before. Find out what to do if this happens to you. Read More Cheating Many kids feel tempted to cheat once in a while, but it's not worth it. Read our article on cheating to find out why! Read More Dealing With Peer Pressure Did you ever feel like another kid was trying to get you to do something you didn't want to do? If so, you've felt peer pressure. Find out more in this article for kids. Read More What Medicines Are and What They Do You've taken medicine before. But what is it? Read More What You Need to Know About Drugs Drugs are chemicals that change the way a person's body works. Some drugs help you feel better, but drugs also can harm you. Learn more in this article for kids. Read More Note: All information is for educational purposes only. For specific medical advice, diagnoses, and treatment, consult your doctor. © 1995-2021 KidsHealth®. All rights reserved. Images provided by The Nemours Foundation, iStock, Getty Images, Veer, Shutterstock, and Clipart.com.