Sixty Second Hair Loss Study"If you don't know how many hairs you are losing, how will you know if your treatment is effective?"
In the famous standardisation study, the researchers examined hair loss in 60 healthy men with no signs of male pattern baldness. Half of the men were between the ages of 20 and 40 and the other half between ages 41 and 60. The results showed younger men shed an average of 10.2 per 60-second test and the older men shed an average of 10.3 hairs per test. "When repeated six months later in both age groups, the hair counts did not change much. The hair counts were repeated and verified by a trained investigator, with results similar to those of subject hair counts," wrote the researchers. The research team stated that the very low variability between tests over time and across age groups would indicate that the standardised 60-second hair count is a simple and practical tool for assessing normal hair loss vs. problem hair loss. "We keep hearing the same things over and over, that it's normal to lose 100 hairs a day," says UK trichologist Frank Cunningham. "The question is, how normal is it and what is normal in terms of hair loss." Both the media and dermatology experts are fond of proclaiming that shedding 100 hairs a day is normal. There is little scientific evidence for that number, which is based on the assumption that the average scalp holds 100,000 hairs, 10 percent of which are at any one time in the telogen, or resting, phase. Experts simply do not know how much hair loss is normal; they also previously didn't have a standardised way of assessing the amount of hair lost on an average day by the average person. Read the complete 'Standardizing the 60-Second Hair Count' study here. |
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Last updated: 01/08/21
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