Science
With our expanded life expectancy in contemporary times, people are faced with two adulthoods: the period of 20-50, and 50 - 80. The first adulthood we are biologically programmed by Mother Nature to mate and procreate and assure the continuation of our species. The second adulthood engenders all kinds of existential anxiety because Mother Nature doesn't help us at all. How have you, are you, or will you negotiate this transition from adulthood number one to adulthood #2?