I'm enjoying the recent arrival of spring weather and the feelings of hope and renewal that accompany it. I enjoy watching the seasons change and am grateful for the variety they provide. I think human development and life stages mimic nature and the seasons. Below I have some brief insights about life, development, and aging. The ages I have listed are approximate and I'm sure there are some exceptions like Benjamin Button, but for most people, I think these generalities hold true.
Summer probably runs from age 26-40. This is the prime of life when it comes to physical conditioning and health for most people. It is an exciting time as people start careers, families, and put more effort into leaving their mark on the world.
Fall is most likely in the age range of 41-65. I think this is the highlight of life as one matures and takes on new roles as grandparents while they continue to relate to and interact with the younger generation. The disadvantage is you are more likely to start paying attention to all of those pharmaceutical commercials you see on TV.