Abstract
A single human hair grows at the rate of approximately 9–12 mm/month. The combined effect of approximately 100,000 hair shafts produces a physical entity—the hair mass—which increases at a combined total of approximately 6 feet (1.8 m) an hour or 140 feet (46.67 m)/day. At a uniform length of 40 cm, this represents 40 km of hair carried on the head.
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© 2015 Springer International Publishing Switzerland
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Marsh, J., Gray, J., Tosti, A. (2015). Understanding Hair Damage. In: Healthy Hair. Springer, Cham. https://doi.org/10.1007/978-3-319-18386-2_3
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DOI: https://doi.org/10.1007/978-3-319-18386-2_3
Publisher Name: Springer, Cham
Print ISBN: 978-3-319-18385-5
Online ISBN: 978-3-319-18386-2
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