At a molecular level, steroids are lipids derived from cholesterol. They are categorized based on their structure and function into four main groups: corticosteroids, sex steroids, anabolic steroids, and mineralocorticoids.

Medical Uses of Steroids:

• Corticosteroids: Often prescribed to reduce inflammation, they're used to treat conditions like asthma, arthritis, and some autoimmune diseases.
• Sex Steroids: They play crucial roles in reproduction, growth, and development. Hormone Replacement Therapy (HRT) often utilizes these steroids.
• Mineralocorticoids: Essential for fluid balance in the body, these steroids are often used to treat conditions like Addison's disease.

Anabolic Steroids and Performance Enhancement:

Popularly known for their role in muscle building, anabolic steroids are synthetic versions of testosterone, the male sex hormone. While they promote muscle growth, strength, and improved athletic performance, they're not without risks.

Risks and Side Effects:

Overuse or misuse of steroids, especially anabolic steroids, can lead to:

• Hormonal imbalances
• Liver damage
• Increased risk of heart diseases
• Aggressive behavior or "roid rage"
• Decreased fertility
• Growth of breast tissue in men, known as gynecomastia

Legal Considerations:

In many countries, the sale and distribution of anabolic steroids without a prescription are illegal. Their use is also banned in most professional sports, with athletes facing severe consequences if caught doping.