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.
Your thyroid is an unassuming butterfly-shaped gland in your neck that secretes all-important hormones that control major bodily functions, including how you digest food and use energy. When your thyroid slows down, everything slows down; hence the fatigue and weight gain when it does. Many things can put you at risk for a sluggish thyroid, some of which you cannot control, like family history. Fortunately, you can control how and what you eat. And new research shows certain foods have proven potential in helping to improve thyroid health and boost the effectiveness of your metabolism master.