Why do people get jealous?

You are right that people are tend to get jealous, and I think it is natural for people to get jealous especially when they felt inferior to the other people. I believe that jealousy doesn't come alone, it happens out of something. Sometimes someone get jealous to another people not just because they don't like to see other people's happiness, but sometimes it is because they are not able to get what they want and other people get it so easily.

That's human nature I suppose. People get jealous when they don't have the thing that certain people are having it. I think this kind of situation is really cannot be avoided in our daily life. It's only depends on the level of jealousy we are having. Some people may jealous now but very soon they will forget about it. But some people are different,they will keep it in heart and even worse they will revenge.

Yeh I guess it is just a feeling people get that can't be controlled, I can understan a little with matters of the heart but getting jealous over what other people have is a bit silly I think...