I can vouch that, with age being my tutor, one's capacity decreases in memory, patience, cash flow, friends, alcohol absorption, hair, sight, hearing, and teeth. One's capacity with age increases for aches, pains and stiffness, curmudgeonly behaviour / grumpy old mannishness and use of the flush toilet. So far there is little to recommend this state of being, except perhaps the bus pass, carpet slippers, and cardigans for the tasteless, shapeless, and hapless male.