A steroid is a chemical, either natural or man-made, which acts as a hormone in the body. Examples of steroid hormones include estrogen, testosterone, progesterone, cholecalciferol (commonly known as Vitamin D3) and cholesterol. The body actually uses cholesterol to make the other steroids.
Certain steroids, such as testosterone, are used as drugs to help a person do better in areas such as sports, as well as give them more physical strength. Often, steroids are used to improve a person's performance, but they are sometimes overused and abused by athletes that depend on steroids. The rate of steroid abuse has grown by a high percentage in the last few years, and people all over the world continue to use them. Steroids can have very bad effects on the human body . The substances that are steroids for vertebrates are either hormones, or cholesterol. Steroids can kill people, and they have many side effects for both men and women. They are common in sports, but also in other areas. But is illegal for some sports.
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- steroid Before And After Pictures Steroid users