Abstract of the hypothesis: increased muscle tone (chronic contraction) of the facial and masticatory muscles as a result of psychophysiological conditioning (stimulus-response pattern) caused by interpersonal interaction
Article: https://user2704.substack.com/p/caus...n-hair-loss-is

figure – Men with hair loss in the forehead and temple area. below: increased muscle tone (chronic contraction) of the corresponding mimic muscles (coloured red)

figure – Man with hair loss at the crown of the head. below: increased muscle tone (chronic contraction) of the corresponding mimic and masticatory muscles (coloured red)
Article: https://user2704.substack.com/p/caus...n-hair-loss-is
figure – Men with hair loss in the forehead and temple area. below: increased muscle tone (chronic contraction) of the corresponding mimic muscles (coloured red)
figure – Man with hair loss at the crown of the head. below: increased muscle tone (chronic contraction) of the corresponding mimic and masticatory muscles (coloured red)