Thyroid and testosterone

The article suggests thyroid and testosterone should be interpreted against symptoms and functional goals, not only lab reference ranges. Thyroid function is treated as central to metabolism and weight regulation. The article argues that insufficient thyroid function can cause weight gain or weight-loss resistance even with lower food intake. Testosterone is discussed as relevant for weight loss and vitality in midlife women. Thyroid medication changes are described as requiring caution because abrupt or excessive changes can be dangerous for the heart. The individual's TSH, free T3, and low-but-in-range free T4 are interpreted as possibly leaving room for thyroid optimization.