Some steroids occur naturally in the body, such as cortisol, sex hormones, bile acids. Cortisol is essential for all life. There are many kinds of steroids, Cortico, Glutico, Sex Hormones and Anabolic steroids.
Anabolic steroids are illegal.
When synthetic steroid hormones are prescribed and used correctly, their side-effects can be greatly reduced. But when safeguards are ignored, lives are devastated. You could be using steroids and not even know it.