Testosterone reshapes men’s attraction and their sense of fairness The lab is quiet until the faces appear. One after another, women’s portraits flash on the screen. A group of men rate them, decide whether they’d want to date them, then watch as someone treats each woman fairly or unfairly in a simple money-splitting game. Half the men have rubbed a hormone gel into their skin a few hours earlier. The difference it makes is not just about lust.

Testosterone can nudge men's attraction—and their sense of fairness. Inside the hormone-behavior loop where beauty, punishment, and justice intersect. #AltruisticPunishment #Attraction #Psychoneuroendocrinology #SocialBehavior #Testosterone