Why do celebrities seem to get stricken with more tragedies, health/personal, even with all their money?

I think its because they don't live "normal" lives. They all are always on the go, a camera is always in their face,they can't enjoy simple things,and their names are always in the headlines.They try to make it seem like they live the ultimate life and every thing is wonderful but deep down inside they are cold and lonely and want to live like regular people.