User blog comment:ZorroOfTheBronx/Boomerang Channel to Broadcast YJ Reruns November 3rd/@comment-24.246.67.20-20121105004119/@comment-34954086-20121106001437

Biology, not Chronology.

Arsenal is 15, the age he was frozen at, he was that age in 2011, he is that age in 2016.

By the same token, biologically by martain aging standards, M'gann is 17 & 2/3, 3 years are equivalent to 1 martian aging year.