Your thyroid gland controls your base metabolism and energy levels. Thyroid hormones T3 and T4 have 3 and 4 atoms of iodine. If you are not using iodized salt, your energy levels and body temperatures can be low - or worse.
Mitochondria inside of your cells make ATP, the universal currency of cellular energy. Thyroid hormone fT3 regulates mitochondria and by this mechanism, the hypothalamus and pituitary regulate body temperature. Thyroid function is critical path for quality of life.
See these stickies found here: About the T Replacement Category - #2 by KSman
- advice for new guys
- things that damage your hormones
- protocol for injections
- thyroid basics - check oral body temperatures as suggested
- finding a TRT doc
Low thyroid function has most of the same symptoms as low-T. Many guys who come here have compound effects of both. Low thyroid function can lead to secondary hypothyroidism.