Middle Adulthood
The above photo shows the different layers of the human body. In middle adulthood, many profound bodily changes occur. The vision, hearing, skin, muscle-fat makeup, skeleton, and reproductive system change in middle adulthood.
This comic shows the exaggeration of a thing called mid-life crisis. There is some debate about whether it's name correctly reflects what it really is. During a midlife-crisis, one questions and reflects on their life and the decisions they've made. If unhappy with this reflection, some people make drastic changes like getting divorced, going back to school, getting a new job, buying an expensive car, etc.