一是要注意头、颈部保暖。头部暴露在外,易受寒冷刺激,引起血管收缩,容易导致头痛、感冒。老年人外出一定要戴好帽子、耳套、围巾,以防头、颈部受寒。有的人在冬季持续咳嗽不愈,就是因为常穿开领上衣,让寒冷的空气直接刺激气管所造成的。只要注意颈部保 First, pay attention to the head, neck warm. Head exposed, vulnerable to cold stimulation, causing vasoconstriction, easily lead to headaches, colds. Elderly people must wear a hat, earmuffs, scarves to prevent head, neck, cold. Some people continue to cough unhealed winter, it is because often open collar shirt, cold air directly stimulate the trachea caused. Just pay attention to neck care