Age

From LSWiki

Age is a number you see when you type "score". It's your incarnos' in game age. Every race begins with a different age value. The value is itself randomized among racial possibilities.

For example, a dana might have begun adventuring at age 90, while a human at 17.

It seems to increase by 1 as the in game years march on. It seems to be purely cosmetic, albeit it could be used for roleplaying.