Leggete anche questo,sebbene non sia un granché.Alopecia
by Ron Kennedy, M.D., Santa Rosa, California
An individual human hair goes through three stages. It grows vigorously for two to four years the enters a short transitional stage and then a resting phase lasting two to four months. Then it enters its third stage, shedding. The average head contains around 100,000 hairs. Of these up to 100 (about one out of every 1000) shed each day. After shedding, the vigorous growth stages is entered once more.
Pattern loss is the most common cause of hear loss and affects 70% of men and 15% of women. Classic male pattern baldness affects the temporal regions of the forehead and is usually accompanied by diffuse thinning in which, after shedding, a percentage of hairs do not regrow.
One of the causes of alopecia, or hair loss, is the progressive increase of a hormone called DHT or dihydrotestosterone. As people age, especially men, the enzyme which converts testosterone to DHT increases in activity and greater concentrations of DHT are produced. Today there are blocking agents which can be prescribed which remove this cause of hair loss.
Decreasing circulation to organs is a problem throughout the body as we age and accounts for many of the manifestations of aging. The blood supply to hair follicles is not different. There are topical agents (minoxidil or Rogaine, retinoic acid or Retin-A) which can be prescribed to restore and protect the blood supply to the hair follicles.
In addition, the general decline of vitality in the hormone system which begins around age 40 accounts for some hair loss as well as many of the other signs of aging. Restoration of hormone levels using natural, orthomolecular (meaning the same hormones made by the body, i.e. not synthetic drugs) usually has a beneficial effect on all systems of the body, including hair vitality.
The above treatments are best started at the beginning of hair loss. If the hair follicle dies, it does not come back to life.
by Ron Kennedy, M.D., Santa Rosa, California
An individual human hair goes through three stages. It grows vigorously for two to four years the enters a short transitional stage and then a resting phase lasting two to four months. Then it enters its third stage, shedding. The average head contains around 100,000 hairs. Of these up to 100 (about one out of every 1000) shed each day. After shedding, the vigorous growth stages is entered once more.
Pattern loss is the most common cause of hear loss and affects 70% of men and 15% of women. Classic male pattern baldness affects the temporal regions of the forehead and is usually accompanied by diffuse thinning in which, after shedding, a percentage of hairs do not regrow.
One of the causes of alopecia, or hair loss, is the progressive increase of a hormone called DHT or dihydrotestosterone. As people age, especially men, the enzyme which converts testosterone to DHT increases in activity and greater concentrations of DHT are produced. Today there are blocking agents which can be prescribed which remove this cause of hair loss.
Decreasing circulation to organs is a problem throughout the body as we age and accounts for many of the manifestations of aging. The blood supply to hair follicles is not different. There are topical agents (minoxidil or Rogaine, retinoic acid or Retin-A) which can be prescribed to restore and protect the blood supply to the hair follicles.
In addition, the general decline of vitality in the hormone system which begins around age 40 accounts for some hair loss as well as many of the other signs of aging. Restoration of hormone levels using natural, orthomolecular (meaning the same hormones made by the body, i.e. not synthetic drugs) usually has a beneficial effect on all systems of the body, including hair vitality.
The above treatments are best started at the beginning of hair loss. If the hair follicle dies, it does not come back to life.
