《黄帝内经·灵枢·邪气藏府病形》
身体受寒，又喝冷水，就会使肺脏受伤，因为两寒相迫，使内外都受到伤害，会发生肺气上逆的疾病。
形寒寒饮则伤肺，以其两寒相感，中外皆伤，故气逆而上行。
If a person catches cold and drinks cold water, the lungs will be hurt, because the two colds press each other, which will hurt both the inside and outside and will cause the disease of dyspnea.