30 Signs Your Thyroid Isn't Working Right

11.Your Hair Is Changing

Hypothyroidism can affect your hair in a variety of ways, says Dr. Bier. It may become dryer and more brittle, forcing you to trim your hair more frequently. Your hair might also change in texture, becoming dull or brittle as a result of hypothyroidism. This condition is relatively rare, but it may cause people to lose the outer third of their eyebrows.