It is easy to wear cap, helmet frowsty bad hair, send the pore muscle that time place bears a label or helmet oppresses to cause trichomadesis easily flabbily especially.

• 戴帽子、头盔轻易闷坏头发，尤其是发际处受帽子或头盔压迫的毛孔肌肉轻易松弛引起脱发。