In a message dated 98-08-02 12:36:32 EDT, the_supergenius@hotmail.com writes:

<< Excuse me, but is there a evidence in the manga to suggest that the 
 curse also specifically effects age? >>

                    Technically, Yes. Ranma falls into the spring of the
drowned girl not drowned female. So one get guess or just use that is cursed
form will always be 16 years old. The question is will his true form continue
aging because if his curse?