was sind tsh werte — what does this mean exactly?

TSH (thyroid-stimulating hormone) is a pituitary hormone that regulates thyroid function. Blood TSH levels are the primary screening tool for thyroid disorders. Normal reference ranges are typically 0.4–4.0 mU/L, but vary by lab and population. Elevated TSH suggests hypothyroidism; low TSH suggests hyperthyroidism. However, TSH alone is insufficient for diagnosis; free T3, free T4, and antibodies are often needed. In consumer health tests like MyBody-X, TSH is offered as a biomarker, not a genetic test. Interpretation requires a physician because many factors (time of day, medications, diet) affect values. Evidence: strong clinical utility, but individual variation is high. No specific sources from the provided context.