Steroids are a class of drugs that mimic the effects of the hormones testosterone and estrogen in the body. They can be used to treat a variety of medical conditions, such as inflammation, hormonal imbalances, and muscle wasting. Steroids are also commonly used by athletes and bodybuilders to increase muscle mass and strength, as well as by people looking to improve their physical appearance. There are many different types of steroids, and they can be taken orally, applied topically, or injected. While steroids can have beneficial effects when used as directed by a medical professional, they also have potential negative side effects, such as acne, mood swings, and heart disease. Misuse of steroids can also lead to addiction and other serious health problems.