Old by modern Standards. After a few thousand years, don't you think humanity would have figured out how to keep mind and body hale and hearty well into the 150th year?<br/><br/>EDIT: BTW, a warship doesn't really have the luxury of windows everywhere. In this case, the only Windows on the ship, barring the ones in escape pods, are on the flag bridge, and those are nearly 2 metres thick, and have retractable ablative armour plates to cover them in battle.