Can a person be more than one person at the same time? Why or why not?

Well we can look at it in a general way of everyday life or we can lookn at it in a science point of view with a hint of mental illness on the side. Alot of you know what I am talking about. Many people undogo mutiple personalities for a reason. They have been abuse as a child and they use it to protect themself from more harm or a brain disfuntion CLICK HERE M.P.D_buzzle.com.

But there a normal way to look at it too. Everyday life calls for people to put on different hats. For example, your a parent to your kids, a co-worker/boss/supervisor at work. You can't treat your kids the same way you treat yoour fellow employees. Another emaple would be acting. Actor and actresses, play different roles during movies or shows, and undercover agents and investagators they too need to wear "different hat" when it comes to their job.