It basically inhibits the activity of certain cells in our kidneys that absorb that calcium. And finally, it causes our intestines to basically absorb less calcium. And that means the calcium will eventually be excreted into the outside environment. So this is our thyroid gland. It's a type of endocrine gland that releases and produces three important types of hormones. We have T three and T four, which are responsible for controlling the basal metabolic rate.