He who laughs last hasn’t had surgery

And they look 8.9 years younger than their chronological age.

The ages of subjects were rated by a randomly selected panel of 10 first-year medical students.

What conclusions can be drawn from such a study?

The first, somewhat unsettling figure that can be extracted is that those who underwent such surgery looked 1.7 years younger than their chronological age before surgery. Which means that surgeons were operating on patients who were perhaps least in need of such intervention.

In analysing such a conclusion,