How Small Acts Change the World. It sets off a chain reaction that spreads far beyond the person we help. Does being nice really make a difference? It turns out that kindness is actually contagious. The ripple effect of kindness changes how we feel about making the world a better place. When we see someone do something nice, it changes our brain chemistry. We get a boost of feel-good hormones like oxytocin, which makes us likely to be kind ourselves. UCLA’s Bedari Kindness In
