寒冬重三暖

• 作 者: 夏茵
• 出 处: 健康
• 发表日期: 2002年02期
• 关键词: 伤风感冒 重三 冷刺激 保暖性能 肌肉紧张 血管收缩 时可 阳经 环境温度 阳中之阳

头暖 常言道:“冬天戴棉帽,胜过穿棉袄”。帽子虽小,却与人体的热平衡有着密切的关系。实验证明:静止状态下不戴帽子的人,在环境温度为15℃时,从头部散失的热量,约占人体总产热量的30％,4℃时约占50％,—15℃时可高达75％。因此,在寒冷的冬天,戴一顶保暖性能良好的帽子是非常必要的。否则,会因头部暴露而受寒冷刺激,导致血管收缩,肌肉紧张,引起头痛、伤风感冒、

Head warm as the saying goes: “wearing a cotton hat in winter, better than wearing a jacket.” Hat is small, but with the body’s heat balance is closely related. Experiments show that: people who do not wear hats in stationary state, when the ambient temperature is 15 ℃, the heat dissipated from the head accounts for about 30% of the total body heat output, about 50% at 4 ℃, 15 ℃ Up to 75%. Therefore, in the cold winter, wearing a good thermal performance hat is very necessary. Otherwise, the head will be exposed to the cold stimulation, leading to vasoconstriction, muscle tension, headache, cold and flu,