The true incidence and prevalence of alopecia areata is unknown. It is estimated that 1-7% of the population will experience an episode of alopecia areata during their lifetime.2 Alopecia areata accounts for 2% of new dermatological outpatient department attendances in the UK and US.3 While alopecia areata can develop at any age, 30-40% of cases appear before 21 years of age and 20-30% after 40 years of age.4 The condition occurs in equal incidence in both sexes. The percentage of patients with alopecia areata that go on to develop alopecia totalis/ universalis is not known, but estimates range from 7% to 30%.5
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The best start to preventing hair loss is understanding the basics of hair what it is, how it grows, what system malfunctions can cause it to stop growing. And this ebook will cover the bases for you. Note that the contents here are not presented from a medical practitioner, and that any and all dietary and medical planning should be made under the guidance of your own medical and health practitioners. This content only presents overviews of hair loss prevention research for educational purposes and does not replace medical advice from a professional physician.