长嗟短叹表达的是悲伤、放弃、沮丧等消极情绪

Long jie short sigh is sad/To give up/Depression and other negative emotions

　　人们为什么会长嗟短叹？研究发现，叹气可调整身体与精神状态，还给外界传达信息。

Why do people grow adopting short sigh?Studies have found that,Sigh can adjust the body and mental state,Back to the outside world to convey information.

　　比利时鲁汶大学的研究发现，人们在叹气之前的一段时间内，呼吸的速度和深浅开始变化。当呼吸按照一种节奏持续了太长时间，肺部会僵化，导致气体交换效率下降。这是进行一次叹气能舒张肺泡，给人以放松的感觉。

Findings of a study at the university of leuven, in Belgium,A period of time before people sigh,Speed and depth of breathing began to change.When breathing in a rhythm lasted too long,The lungs will be rigid,Led to the decrease of the efficiency of gas exchange.This is a sigh can diastole alveoli,Give a person with relaxed feeling.

　　挪威奥斯陆大学的一系列研究发现，人们在公共场合与私下独处时叹气的次数差不多，推测叹气可能是一种人际交流的形式。人们一般会将叹气与消极的情绪联系起来，包括失望、挫败、沮丧、无聊等。其中，人们很容易把别人的叹气解读为悲伤，而把自己的叹气解读为沮丧。当人们无法解决难题的时候，就会不自觉叹气，表示沮丧和放弃。

A series of study at the university of Oslo, Norway,People in public and private solitude sigh the number of times,Speculated that sigh may be a form of interpersonal communication.People generally will sigh with negative emotions,Including the disappointment/defeat/depressed/Boring, etc..Among them,It is easy to take people's sigh interpreted as sad,By their own sigh interpreted as depressed.When people couldn't solve the problem,Will unconsciously sigh,Said frustrated and give up.

　　(编译 伍君仪)

(Compile WuJunYi)