Possible to live over 150 years?

Possible to live over 150 years?
I was watching a show on TLC called, Child Frozen in time. This child is pretty much not aging. What I think is that she is actually growing, she is just growing at a slow rate. I was thinking maybe she would live longer than 1 or even 200 years! Of course, she would have to be careful not to get sick. Shes had several cases where they thought she was going to die but she came back like she was never sick. So maybe she is invincicble/imortal? What do you think