Growing up is hard foreveryone. We all face lots of stressas teenagers. Now1facing all of that stresswhile being in the spotlight (聚光灯).

That's2Canadian singer JustinBieber had to deal with as he grew up. He was first3by a music producer when hewas just 13 years old. He became a superstarwithin just a few years, selling millions of albumsand touring the world. But at the time of hissuccess, he is also fighting withmental (精神上的) illness and drug abuse (药物滥用).

However, it seems that he has put these troubles4him. Bieber recently wrote a post (帖子) on Instagram, saying that growing up in the spotlight was indeed quite5.

"I went from a13-year-old boy from a small town6being praised left andright by the world …I made every bad decision you could have thought of andwent from one of the most loved people …to the most7 person in the world, " he wrote. He said it was his wife8 helped him turn his life around.

Bieber is not the only onewho has faced stress from becoming9at a young age. Actors Edward Furlong and Macaulay Culkin saw their lives take adownward turn after they succeeded in Hollywood during their childhoods.

Why did they experiencethis？ "Childhood is about finding out who youare and being able to relate to (与……相处) others, and those things are harder to learn when you're famous. That amount of public watch makes10hard for kids to do that, "scientist Eileen Kennedy-Moore told USA Today.