Our thyroid is the one of the most sensitive glands we have. Thyroid cancer is now the fastest growing type of cancer. There is another epidemic: Hypothyroidism. I have seen lately that many elite swimmers are having their thyroids affected by the chlorine and bromine in swimming pools. These two chemicals in particular can do great damage to the thyroid. My suggestion is to clear these toxins with chlorella and cilantro. If you have the cilantro gene, where it tastes like soap then use glutathione instead. It is also a heavy metal and chemical chelator. If your child is a year round swimmer and is feeling lethargic, gets cold easily, is constipated, hair and nails are brittle or has a sluggish metabolism, get their thyroid checked and clear those toxins!