Hair stops growing for many reasons, but one of the most common is the conversion of testosterone to the hormone DHT. As hair stops growing, the shafts eventually break, leading to male pattern baldness. After menopause, a woman's production of estrogen no longer counteracts DHT, leading to female pattern baldness, a condition in which the front hairline is preserved, but there is a general thinning of the hair.Continue Reading
According to HowStuffWorks, Alopecia areata is an autoimmune disease that attacks the hair follicles. The condition causes the hair to fall out and growth to slow. Under normal circumstances, hair begins to grow again after a few months. A related condition, alopecia universalis, causes loss of all the scalp and body hair.
Scars often stop hair growth in the affected area. Burns, skin infections or injury or X-ray treatments can leave scars on the scalp, eliminating hair follicles so that hair no longer grows in the area.
Telogen effluvium is a condition affecting the resting phase of hair growth, which is the final phase. Under normal circumstances, an individual loses 50 to 100 hairs daily in the hair growth cycle. However, those suffering telogen effluvium lose more hairs daily. Most cases last about six months, but chronic versions persist for years. In some cases, the hair begins to grow again on its own, but in others, medication helps to restore the growth cycle.Learn more about Conditions & Diseases
Hair can appear curly in the morning for several reasons, including sweating at night, restless sleep and the use of certain bed linens. Sections of curly hair are one characteristic of "bed head," the unkempt appearance of hair after sleep.Full Answer >
Laser therapy uses infrared light to stimulate and promote hair growth on the head, according to Leonard Hair Transplant Associates. Its versatility makes it ideal for men and women with hair loss problems because it stops further deterioration. Hair transplant patients use laser therapy as a follow-up treatment to stimulate faster healing and regrowth.Full Answer >
Hair loss occurs for many reasons, including hormonal fluctuations during and after pregnancy, excessive heat exposure, fungal infections, genetics or chronic autoimmune diseases such as lupus and alopecia areata, notes Prevention. Dermatological skin conditions such as psoriasis and seborrheic dermatitis are also known to lead to hair loss.Full Answer >
DHT, or dihydrotestosterone, is a type of male hormone that shrinks hair follicles. Researchers believe that the amount of DHT that binds to receptors in the hair follicles' oil glands is the major contributing factor to pattern baldness, according to the American Hair Loss Association.Full Answer >