Happiness levels are really high when we’re young. They then steadily dip through our 20s, 30s, and 40s, and bottom out in our early 50s–at which point, they make a sharp and sudden rise. Then, through our 60s, 70s, and 80s, they are way above where we were in our youth.
Why is this? Why do we get happier even as our bodies are falling apart? Here’s another question: Why, from the standpoint of evolution, do humans stick around way past the point of reproductive age? The answer to all of these questions, per our guest today, is: wis...