大多数疾病并非一夜之间就会出现,它们常常经过数年时间,通过一些典型的报警信号宣告它们的存在。指甲断裂、褪色或出现沟槽:指甲断裂预示着甲状腺遭到破坏或身体缺乏矿物质;指甲突然发黄可能是长牛皮癣的前兆;指甲上出现纵的沟槽说明要得胰腺炎、关节炎或小肠炎;横的沟槽表明有内心的痛苦或肠感染。皮肤干燥:干燥的皮肤缺 Most diseases do not occur overnight, and they often take years to declare their presence through some typical alarm signals. Nails break, fade or appear trenches: Nail breaks indicate damage to the thyroid gland or lack of minerals in the body; sudden yellowing of nails may be a precursor to long psoriasis; longitudinal grooves in nails indicate pancreatic inflammation, arthritis or Enteritis; horizontal grooves indicate inner pain or intestinal infection. Dry skin: dry skin is absent