Anatomy of Hair. A diagram of hair anatomy appears relatively straightforward, but it's actually one of the most complicated structures in the body. Hair is made up the two separate structures: the hair follicle, which exists below the skin, and the hair shaft, which is the hair we see. The hair follicle is the living part of the hair.
How hypothyroidism negatively affects your stomach acid levels. Just as hypothyroidism can result in the drying out of your skin and hair, it also seems to lower the levels of stomach acid in many thyroid patients, possibly by lowering your amount of parietel cells or lowering their ability to produce gastric acid, aka hypochlorhydria.
Cruciferous Vegetables Cruciferous vegetables, such as broccoli and cabbage, can interfere with the production of thyroid hormone, particularly people who have an iodine deficiency. Digesting these vegetables can block the thyroid's ability to absorb iodine, which is essential for normal thyroid function. People with hypothyroidism may want to limit their intake of broccoli, Brussels sprouts, cabbage, cauliflower, kale, turnips, and bok choy. Cooking the vegetables can reduce the effect that cruciferous vegetables have on the thyroid gland.