When you think of happiness, you almost don't think of emotional tears(情绪化眼泪). But have you ever heard of the term "happy tears"? A happy event may also cause people to tear. Happy crying is perfectly common. If you want to know why exactly it happens, read on.
Firstly, you cry when you feel moved because you have bad feelings. If you find some ways to make these bad feelings out of your mind, you will feel relaxed.
Secondly, crying may help you control your body. Emotional tears might include two things. They are proteins(蛋白质)and hormones(荷尔蒙). When you cry, your body produces a stress hormone. It may help control your emotions. When you cry, maybe you can get others' care. Scientists believe that crying is a way of making a social communication with other people.
Thirdly, it could also be your way of showing the things you are not good at. You feel it difficult to deal with your emotions. Scientists also suggest that all types of crying come from feeling helpless to control the things going on around you.
Lastly, crying helps you manage emotions. It can help you manage strong emotions. So next time you feel the tears coming on after receiving some good news, don't hold back, let the tears flow.