Yes, there are risks when retiring early, and people are quick to point them out when a person makes that choice. What about the risks of not retiring early? Those don’t get as much play.
I should start by pointing out some of the obvious risks you accept when you do retire early. There’s a chance you could run out of money. Working as little as one more year can dramatically decrease your chance of failure.
While it’s true that your presence among the living is binary — you’re alive and kicking or you’re not — quality of life will vary along a wide spectrum.