Risks and limits of Testosteron Männer

The provided knowledge contexts do not contain specific information on testosterone in men. Therefore, this answer is based on general medical knowledge. Testosterone replacement therapy (TRT) is indicated for confirmed hypogonadism but carries risks such as increased erythropoiesis (polycythemia), worsening sleep apnea, acne, gynecomastia, and potential cardiovascular events (especially in older men or those with pre-existing heart disease). Long-term safety for non-hypogonadal men (e.g., anti-aging) is unproven; studies show conflicting results. Direct-to-consumer DNA tests like MyBody-X do not measure serum testosterone; they may report single SNPs (e.g., in the SHBG gene) with limited clinical relevance. A normal genetic finding does not rule out actual testosterone deficiency. Evidence for risks and benefits of TRT is moderate but not derived from the given context. Be cautious of unverified 'testosterone boosters' – they are often ineffective or dangerous.