By Petra Lombard, Jul 30 2013 9:10PM
As we age we cannot expect to have the same head of hair we had in our youth and that also applies to eyebrows. Over plucking in our youth is one of the reasons for sparse brows but no brow hair is usually due to another factor.
The reasons for hair loss are many. When hair loss begins suddenly, the cause may be due to illness, diet, medicine, childbirth or hormones. If hair loss is gradual it becomes more noticeable with each passing year,
Underlying medical condition - Hair loss can be the first sign of a disease. About 30 diseases, including thyroid disease and anemia, cause hair loss. By treating the disease, hair loss often can be stopped or reversed.
Illness- Significant hair loss can occur after an illness. A major surgery, high fever, severe infection, or even the flu can cause hair loss.
Some cancer treatments - Radiation therapy and chemotherapy can cause hair loss. This hair loss is often temporary, but it can cause great distress.
Ring worm of the scalp - This disease is contagious and common in children. Without effective treatment, ringworm can cause balding.
Trichotillomania - This medical disorder causes people to repeatedly pull out their own hair. They often feel a constant urge to pull out the hair on the scalp. Some sufferers say they feel compelled to pull out their eyelashes, nose hairs, eyebrows, and other hairs on their bodies.
Hormones and stress
Giving birth - After giving birth, some women have noticeable hair loss. Falling estrogen levels cause this type of hair loss. The hair loss is temporary. In a few months, women see their hair re-grow.
Menopause - Hair loss is common during menopause. This loss is often temporary. Hair re-grows with time, although it is very unlikely eyebrows will regrow.
Stress - Experiencing a traumatic event (e.g., death of a loved one or divorce) can cause hair loss usually this will be contained to the head.
Dieting and poor nutrition
Weight loss - Some people see hair loss after losing more than 15 pounds. The hair loss often appears 3 to 6 months after losing the weight, eyebrows are not usually effected..
Vitamin A - Too much vitamin A can cause hair loss. People can get too much of this vitamin through vitamin supplements or medicines. Once the body stops getting too much vitamin A, normal hair growth resumes.
Protein - When the body does not get enough protein, it rations the protein it does get. One way the body can ration protein is to shut down hair growth. About 2 to 3 months after a person does not eat enough protein, you can see the hair loss. Eating more protein will stop the hair loss. Meats, eggs, and fish are good sources of protein. Vegetarians can get more protein by adding nuts, seeds, and beans to their diet.
Iron - Not getting enough iron can lead to hair loss. Good vegetarian sources of iron are iron-fortified cereals, soybeans, pumpkin seeds, white beans, lentils, and spinach. Clams, oysters, and organ meats top the list of good animal sources of iron.
Eating disorder - When a person has an eating disorder, hair loss is common. Anorexia (not eating enough) and bulimia (vomiting after eating) can cause hair loss.
Some prescription medicines can cause hair loss. These include:
High-dose vitamin A.
Medicines that treat arthritis, depression, gout, heart problems, and high blood pressure.
Birth control pills - Some women who take the pill see hair loss. Sometimes, the hair loss begins when a women stops taking the pill. Women who get this hair loss often have hereditary hair loss.
Anabolic steroids (steroids taken to build muscle and improve athletic performance) may cause hair loss.
Although hair on the head often re grows this can not be said for eyebrow hair. If some growth re occurs it is usually sparse and delicate. Eyelashes can also be effected with hair loss and in most cases will re grow. Semi - Permanent makeup procedures can replace eyebrows and enhance eyes.
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