Gray’s findings are based on two studies. In the first, participants were given $1, and were told either to keep it or to donate it to charity. They were then asked to hold up a 5-lb. weight for as long as they could. Those who donated to charity could hold the weight up for almost 10 seconds longer, on average.So, your obvious next step is this: Vote Modest Needs in the Pepsi Refresh Project, then go hit the gym. Your bench press will be unstoppable.
In a second study, participants held a weight while writing fictional stories of themselves either helping another, harming another, or doing something that had no impact on others. As before, those who thought about doing good were significantly stronger than those whose actions didn’t benefit other people.
But surprisingly, the would-be malefactors were even stronger than those who envisioned doing good deeds.