“The mere act of kindness, or one of evil, can boost willpower and physical strength, a new study suggests.

The results, based on three experiments, show that those who performed good deeds, or envisioned themselves acting charitably, were able to hold a weight or squeeze a hand grip significantly longer than those who didn’t perform or think about such deeds.

But evil acts appeared to confer similar and perhaps even greater superpowers.” Found on LiveScience via Newsarama.