I saw a fascinating video on BoingBoing this morning, showing a sequence of people saying their ages from 1 to 100:

Fascinating but also a bit of a momento mori. The faces progress from the softness of childhood, through the flush of youth and young adulthood before beginning to add laughter lines and wrinkles and increasing outward signs of senescence. Incidentally, that is 5050 years of total life experience represented!