Acta clinica Croatica, Vol. 59. No. 4., 2020.
Original scientific paper
https://doi.org/10.20471/acc.2020.59.04.11
The (A)Symmetry of the Male Graying Beard Hairs as an Indication of the Programmed Aging Process
Borut Poljsak
; Laboratory for Oxidative Stress Research, Faculty of Health Sciences, University of Ljubljana, Ljubljana, Slovenia
Raja Dahmane
; Department of Biomedicine in Health Care Division, Faculty of Health Sciences, Faculty of Medicine, Institute of Anatomy, University of Ljubljana, Ljubljana, Slovenia
Metka Adamič
; Metka Adamič Dermatology Clinic, Ljubljana, Slovenia
Robert Sotler
; Laboratory for Oxidative Stress Research, Faculty of Health Sciences, University of Ljubljana, Ljubljana, Slovenia
Tina Levec
; Laboratory for Oxidative Stress Research, Faculty of Health Sciences, University of Ljubljana, Ljubljana, Slovenia
Doroteja Pavan Jukić
; Josip Juraj Strossmayer University of Osijek, Faculty of Medicine, Department of Gynecology and Obstetrics, Osijek, Croatia
Cecilija Rotim
; Dr Andrija Štampar Teaching Institute of Public Health, Zagreb, Croatia
Tomislav Jukić
; Josip Juraj Strossmayer University of Osijek, Faculty of Medicine, Department of Internal Medicine, Family Medicine and History of Medicine, Osijek, Croatia
Andrej Starc
; Laboratory for Oxidative Stress Research, Faculty of Health Sciences, University of Ljubljana, Ljubljana, Slovenia
Abstract
Aging interventions will be ineffective if we do not understand the basic principles
of aging. Currently, there is no consensus on the issue whether aging is programmed or not. The hypothesis
presented in this article indicates that aging (at least graying of male hairs) is programmed.
This hypothesis is supported by the symmetry of the graying of male beard hairs. According to stochastic
theories of aging, aging is a passive non-programmed process where random dispersion of
graying hairs should result. On the contrary, programmed theories of aging would predict that there
should be symmetry on the left and right parts of the face showing the same proportion, pattern and
time of appearance of graying hairs.
Keywords
Graying beard hair; Graying hair; Aging; Programmed theory of aging; Stochastic theory of aging
Hrčak ID:
253758
URI
Publication date:
1.12.2020.
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