TSH (thyroid-stimulating hormone) is a well-established biomarker for thyroid function. In women, TSH is particularly relevant because thyroid disorders (e.g., Hashimoto's thyroiditis) are much more common. Elevated TSH indicates hypothyroidism, while low TSH suggests hyperthyroidism. Reference ranges vary by age, pregnancy, and lab. MyBody-X may include TSH in blood panels, but such tests are not diagnostic. Important: TSH alone is insufficient – free thyroid hormones (fT3, fT4) and antibodies (TPO-Ab, Tg-Ab) are needed for full assessment. If values are abnormal or symptoms (fatigue, weight changes, menstrual irregularities) occur, consult an endocrinologist. Evidence: strong, as TSH is clinically validated for decades. Caveat: interpretation requires medical expertise; self-testing can lead to mismanagement.
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