Astrologers have always known that Saturn rules the passing of time, aging and old age. We now have scientific proof:

Scientists have found that human beings age at a molecular level in two accelerated bursts – first at the age of 44, and then again at 60. [CNN]

• Age 44 is your second Saturn opposition (Saturn opposite Saturn transit).
• Age 60 is your second Saturn return (Saturn conjunct Saturn transit).

Just like clockwork!