It occurs in both sexes and at all ages. A person with hypothyroidism may feel lethargic and may chill easily. The skin may become dry and blemished. There may be thinning of the hair, and puffy eyes. Memory is dulled and it may be difficult to concentrate.
Depression is common.
Constipation and weight gain occur. Blood pressure and cholesterol levels rise. The risk of heart disease increases. Many people do not know that they have a problem. The symptoms develop slowly over a period of weeks or months.