Talk:Semi-Immortality/@comment-175.141.92.159-20130619164637/@comment-26256072-20150425130913

Depends.

There are two types of aging:

1. Growing up.

2. Growing old.

The two are different, biologically. Semi-immortal characters may display one or neither of type of aging, depending on the mechanism that halts their aging (e.g. Peter Pan loses 1 and 2 because Neverland halts his personal time, but Wolverine only loses 2 because his old age is reversed by his healing factor).