Читать книгу Why Am I So Tired?: Is your thyroid making you ill? - Литагент HarperCollins USD, Martin Budd N.D. D.O. - Страница 34

It you suffer from low grade hypothyroidism your entire body can feel mentally and physically depressed. In fact, hypothyroidism depresses the whole metabolism. As I have mentioned (see page 10) hypothyroidism can mean that T₃ is not converted efficiently from T₄ at cell level. T₃ (Triiodthyronine) is a powerful hormone in the body and therefore one key to understanding depression.

The T₃ hormone is itself a neurotransmitter as potent in its action as serotonin. However, it is also essential to maintain the levels of serotonin and noradrenaline in the brain. If you do not have enough T₃ you will be lacking in these two hormones. Noradrenaline deficiency is seen as a major cause of depression. Therefore it is vital to ascertain whether you may have low grade hypothyroidism in order to effectively treat depression.