Your thyroid needs iodine to make thyroid hormone. But fluoride, chlorine, and bromine are chemically similar to iodine. They compete for the same receptors in your thyroid gland. And they're EVERYWHERE. Your tap water. Your toothpaste. Your bread (brominated flour). Your furniture (flame retardants). These halides are blocking your thyroid from getting the iodine it desperately needs. But did your endocrinologist ask about your water? Your toxic exposures? Your environment? Of course not. They

37.3: Regulation of Body Processes