Any number of lifestyle factors, genetics, recent life events (such as extreme weight loss in a short period of time or giving birth), or medical conditions can cause your hair to thin.
Lifestyle factors could include using certain hair products, wearing your hair up too tightly, experiencing high stress levels, or not getting enough of certain vitamins and minerals in your diet.
People who have immune system deficiencies could also have thinning hair.
Suddenly thinning hair could be caused by a variety of reasons, such as a period of extreme stress, pregnancy, discontinuing birth control pill use, hormonal changes, a high fever, or pulling at your hair.
Diet plays an important role in the strength and health of a person’s hair. Proteins, fats, and certain vitamins and minerals are especially important for hair health.
People may notice improvements in hair growth when they increase the amount of certain foods in their diet.
Vitamin D deficiencies can contribute to hair loss. Addressing this deficiency could improve thinning hair.