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现在凡是打着“保健产品”名目的产品,都要花不少笔墨隆重吹嘘一下它“提高免疫力”的功能。有人打趣道,当推销员来推销这些保健产品时,只需要反问一句“免疫力真的越强越好吗?”就可以欣赏他表情的风云变幻了。免疫力首先赋予我们抵抗外界病原体的能力。但是免疫力如果太强太敏感,就会对本来没什么危险的外来物产生“过激”的行为,影响机体功能,甚至对组织器官造成伤害。这种过激行为就是超敏反应。日常生活中我们会用“过敏”来称呼它。超敏反应是一种很可怕的反应,经常威胁到生命,因为这是机体自行运转的后果,一旦开始,我们就很难阻止。
Nowadays, any product that targets “health products” has to spend a lot of ink to brag about its “improve immunity” function. Someone quipped that when a salesman comes to market these health products, he only needs to ask a question: “Is the stronger the immune system, the better?” The appreciation of his expression changed. Immunity first gives us the ability to resist external pathogens. However, if the immunity is too strong and too sensitive, it will produce “excessive” behavior on foreign objects that are not dangerous at all, affecting the function of the body and even causing damage to tissues and organs. This overactive behavior is a hypersensitivity reaction. In everyday life we call it “allergy”. Hypersensitivity is a terrible reaction that often threatens life because it is the consequence of the body’s own operation. Once it starts, we can hardly stop it.