in response to kreia's age, as posted a while back, you need to understand the balance of the force. there are many jedi, thousands upon thousands. the sith are few, but, a sith can easily kill many jedi. jedi live a very long time (if i recall correctly Yoda was in his 900's). so in order to balance the force you can infer that the sith are so consumed by power that the dark side kills their body slowly, making them age quickly and develop creases. kreia might be applied to this logic if she is in fact a sith for a long time, the 10 or 15 years after she was exiled. you cannot argue the balance of power because i can recall that exar kun killed thousands (or millions?) of jedi at his last stand. kreia can concievably be 35 years old and have the appearance of a 60, maybe 70 year old woman.