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Testosterone is an anabolic-androgenic steroid, but not all anabolic steroids are testosterone. Learn how they differ in use, dosing, testing, and risks.

Learn the difference between steroid and peptide hormones, how they enter cells, and how external steroids affect natural hormone production.

How anabolic steroids affect the heart and blood vessels, including cardiac structure, rhythm, blood pressure, cholesterol, and existing heart conditions.

Steroid drugs manage inflammation, autoimmune disease, asthma, and hormone disorders. Learn how they work, common forms, and why doctors taper doses.

Why do some anabolic-androgenic steroids build more muscle? We break down receptor binding, structure, tissue selectivity, and what studies show.

How do steroids affect strength vs muscle size? We compare neural adaptations, hypertrophy, compound types, and research findings.

Anabolic steroids can raise appetite and shift protein metabolism, but effects vary by compound. Learn how they differ and what influences the outcome.

Learn how natural testosterone and synthetic anabolic steroids differ in origin, structure, and biological effects. A neutral, evidence-based comparison.