Health encyclopaedia - Alphabetical Topic List健康百科全书-按字母顺序排列的主题清单
| | A | | 1 | | | B | | b | | | C | | 人才招聘 | | | D | | | | | E | | 电子 | | | F | | f | | | G | | 克 | | | H | | h | | | I | | 我 | | | J | | j | | | K | | k | | | L | | 升 | | | M | | 米 | |
| | N | | n | | | O | | o | | | P | | p | | | Q | |常见问题 | | | R | | 研究 | | | S | | | | | T | | 吨 | | | U | | u | | | V | | v | | | W | | 瓦特 | | | X | | x | | | Y | | y | |
Hay fever花粉症
Hay fever, also know as seasonal allergic rhinitis, is a very common in the UK.花粉症，也知道作为季节性过敏性鼻炎，是一个非常共同在英国。 It’s an allergy to grass or hay pollens and generally happens during the spring and summer. itâ € ™是一种过敏基层或干草花粉和一般发生在春季和夏季。 Grass is in pollen (in flower) from May to July and is the most common cause of hay fever.基层是在花粉（在花）由5月至7月，是最常见的原因花粉症。 Exactly when you get it depends on which pollens you’re allergic to.正是当你得到它，取决于其中的花粉youâ € ™重新过敏。
During the spring (March to May), pollens from trees are the most common cause of hay fever.在春季（三月至五月） ，花粉的树木是最常见的原因花粉症。 Some people get hay fever into the autumn months as well.一部分人先花粉症进入秋季个月，以及。 This is rarer and is usually caused by weeds such as nettles and docks, late flowering plants and fungal spores.这是罕见的，并且通常所造成的杂草，如荨麻和码头，下旬开花植物和真菌孢子。
Hay fever symptoms can be similar to a cold, and include a runny nose and eyes and repeated sneezing attacks.花粉症的症状可以类似感冒，包括流鼻水，眼睛和反复打喷嚏攻击。 As with all allergies, the symptoms happen as a result of your immune system (the body’s defence system) overreacting to a normally harmless substance – in this case, pollen.跟所有的过敏，症状发生，由于您的免疫系统（ bodyâ € ™ s防御系统）过度到一个通常无害的物质â € “在这种情况下，花粉。 When the body comes into contact with pollen, cells on the lining of your nose, mouth and eyes release a chemical called histamine that triggers the symptoms of an allergic reaction.当人体接触到与花粉，细胞对衬砌您的鼻子，嘴和眼睛释放一种化学品的所谓组胺引发的症状过敏反应。
You’re more likely to get hay fever if there is a history of allergies in your family, particularly asthma or eczema. youâ € ™重新越有可能得到花粉症如果有历史，就是一部过敏在您的家庭，尤其是哮喘或湿疹。 Hay fever usually begins in the early teens and peaks when you’re in your twenties.花粉症通常开始在初，十几岁和高峰时， youâ € ™重新在您的二十多岁。 Research shows that many people become less sensitive to pollen as they get older, and by the time they reach their mid-forties, hay fever may no longer be a problem.研究表明，许多人越来越敏感，花粉，因为他们年纪，和由时间，他们达到其中，四十岁，花粉症可能不再是一个问题。
