It will increase the rate at which our heart contracts, and so forth. Now, earlier we discussed a positive feedback loop. So we said that what actually causes the release of T three and T four into the blood is the release of TSH by our interior pituitary gland. And what causes this pituitary gland to release TSH is the hypothalamus releasing our TRH. So we have a positive feedback loop going this way, a positive feedback loop going this way. But when we begin to increase the concentration of T three and T four, that will basically inhibit the release of TRH by the hypothalamus and the release of TSH, the thyroid stimulating hormone, by then to hear a pituitary gland.