Can TSH help with Langlebigkeit?

Whether TSH can help with longevity is a nuanced question. TSH (thyroid-stimulating hormone) is a screening marker for thyroid function, not a direct longevity hormone. Some studies in centenarians show slightly elevated TSH levels, suggesting subclinical hypothyroidism may be associated with slower metabolism and reduced oxidative stress, potentially contributing to longevity. However, the evidence is moderate and not conclusive. A TSH home test (like MyBody-X's) is a screening tool, not a full thyroid panel—it lacks fT4, fT3, and antibodies. TSH levels fluctuate due to iodine status, time of day, medications, and illness. From a precision medicine perspective, an isolated TSH value without clinical context is insufficient for longevity claims. There is no defined 'optimal' TSH for longevity. Evidence comes from observational studies, not RCTs. Caution: interpreting TSH alone can lead to unnecessary worry or false reassurance. TSH can be one piece of the puzzle, but not a standalone longevity strategy.