国家地理 - A healthy immune system defends the body against disease and infection. But for one in ten people—mostly women

案例简介：健康的免疫系统保护身体免受疾病和感染。但是对于十分之一的人-大多数是女性-免疫系统出现故障并攻击自己的细胞，导致80多种自身免疫性疾病。激素被认为可以解释为什么女性更容易患自身免疫性疾病-大多数自身免疫性疾病在青春期后发展，雌激素增强免疫力，而睾丸激素抑制免疫力并防止自身免疫。但这可能不是唯一的原因。新的研究表明，这些情况可能与身体未能关闭女性两条x染色体中的一条有关。请访问bio中的链接以了解更多信息。Getty Images的Iuliia Burmistrova的照片 (皮肌炎是一种主要影响女性的自身免疫性疾病，其特征是炎症和皮疹)。

案例简介：A healthy immune system defends the body against disease and infection. But for one in ten people—mostly women—the immune system malfunctions and attacks its own cells, causing more than 80 types of autoimmune diseases.Hormones were thought to explain why women were more prone to autoimmune diseases—most autoimmune diseases develop after puberty, and estrogen boosts immunity while testosterone suppresses immunity and protects against autoimmunity. But that may not be the only reason. New research suggests that these conditions may be linked to the body’s failure to turn off one of a woman’s two x chromosomes. Visit the link in bio to learn more.Photograph by Iuliia Burmistrova, Getty Images (Dermatomyositis, an autoimmune disease that affects mostly women, is marked by the display of inflammation and rash).

国家地理 - A healthy immune system defends the body against disease and infection. But for one in ten people—mostly women—the immune

案例简介：健康的免疫系统保护身体免受疾病和感染。但是对于十分之一的人-大多数是女性-免疫系统出现故障并攻击自己的细胞，导致80多种自身免疫性疾病。激素被认为可以解释为什么女性更容易患自身免疫性疾病-大多数自身免疫性疾病在青春期后发展，雌激素增强免疫力，而睾丸激素抑制免疫力并防止自身免疫。但这可能不是唯一的原因。新的研究表明，这些情况可能与身体未能关闭女性两条x染色体中的一条有关。请访问bio中的链接以了解更多信息。Getty Images的Iuliia Burmistrova的照片 (皮肌炎是一种主要影响女性的自身免疫性疾病，其特征是炎症和皮疹)。