1 . The development of mobile phone makes us do many things easily. A lot of us enjoy doing it: you turn on the camera on your mobile phone and hold it at a high position, making your eyes look bigger and your cheekbones more marked out.     1     There it is your selfie (自拍照).

Today it’s not difficult to find social networking pages full of photos people have taken of themselves and their friends.     2     As many as 91 percent of teenagers have posted photos of themselves online according to a recent survey by the US Pew Research Center.

So what are the reasons for the rise of selfie culture?

“The popularity of the selfie celebrates regular people,” Pamela Rutledge, a professor at the Massachusetts School of Professional Psychology, told Vogue magazine.     3    

In addition, selfies “allow for a close friendship for long-distance friends, because you can see each other’s faces every day”, wrote Casey Miller at The Huffington Post.

    4     “I like having the power to choose how I look, even if I’m making a funny face,” Samantha Barks, 19, a high school student in the US, told Vogue.

    5     The US psychologist, Jill Weber says “There’s a danger that your self-esteem may start to be tied to the comments you get when you post a selfie, and they aren’t based on who you are but they’re based on what you look like.” Weber told Vogue, “When you get nothing or a negative response, your confidence can go down.”