Steroids are a man-made version of chemicals, known as hormones, that are made naturally in the human body. They are designed to act like these hormones to reduce inflammation and are also known as corticosteroids. Steroids are different from anabolic steroids used by bodybuilders and athletes. They are used to control inflammation in conditions such as rheumatoid arthritis, lupus, and PMR. They can be taken in various forms, including tablets, liquids, inhalers, nasal sprays, injections, creams, lotions, and gels. Steroids can have side effects, including an increased appetite, mood changes, difficulty sleeping, and, if taken in high doses, they can cause more serious side effects such as diabetes, high blood pressure, and eye problems. It's important to take steroids as prescribed by a healthcare professional and to be aware of their potential side effects