For how we live.
One lot of Vitruvias's 1/2-grain Thyroid Tablets — 1,955 bottles sold nationwide — was pulled after testing showed the tablets carry more hormone than the label states. The FDA calls it its most serious recall class.
In midlife women the usual cause is the menopause transition, where hot flushes and night sweats last a median of seven years. In older adults they are common, mostly benign, and rarely a mortality signal.
When adults see a doctor for new fatigue, fewer than one in ten turn out to have clear physical disease. The common, treatable and often-missed exception is iron deficiency, which drains energy before it causes anaemia.
A randomised trial and a 21-study meta-analysis found thyroid hormone normalised the blood test but left tiredness and symptom scores unchanged. A guideline now advises against routine treatment.
Two randomised trials tested whether thyroid-hormone tablets help women who carry thyroid antibodies but have normal thyroid function and a history of miscarriage or infertility. Live-birth rates did not move.