title: The natural trait of the curvature of human hair is correlated with bending of the hair follicle and hair bulb by a structural disparity in the root sheath.
authors.affiliation: Biological Science Laboratories, Kao Corporation, 2606 Akabane, Ichikai-Machi, Haga-Gun, Tochigi 321-3497, Japan. Electronic address: yoshida.hiroshi1@kao.co.jp.
authors.forename: Hiroshi
authors.initials: H
authors.lastname: Yoshida
authors.affiliation: Biological Science Laboratories, Kao Corporation, 2606 Akabane, Ichikai-Machi, Haga-Gun, Tochigi 321-3497, Japan.
authors.forename: Hiroyuki
authors.initials: H
authors.lastname: Taguchi
authors.affiliation: Biological Science Laboratories, Kao Corporation, 2606 Akabane, Ichikai-Machi, Haga-Gun, Tochigi 321-3497, Japan.
authors.forename: Akira
authors.initials: A
authors.lastname: Hachiya
authors.affiliation: Biological Science Laboratories, Kao Corporation, 2606 Akabane, Ichikai-Machi, Haga-Gun, Tochigi 321-3497, Japan.
authors.forename: Takashi
authors.initials: T
authors.lastname: Kitahara
authors.affiliation: Department of Dermatology, University of Cincinnati, Cincinnati, OH, USA.
authors.forename: Raymond E
authors.initials: RE
authors.lastname: Boissy
authors.affiliation: The Skin Sciences Institute, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, USA.
authors.forename: Marty O
authors.initials: MO
authors.lastname: Visscher
mesh_terms: D001706:Biopsy; D049109:Cell Proliferation; D004848:Epithelium / Q000033:anatomy & histology; D006197:Hair / Q000502:physiology*; D018859:Hair Follicle / Q000033:anatomy & histology / Q000254:growth & development*; D006801:Humans; D012535:Scalp; D013314:Stress, Mechanical