If you are driving in the United States, you may see a common bumper sticker on passing vehicles that reads: “Perform random acts of kindness.” The saying is meant to urge people to do kind things for others without thinking or planning ahead. But several studies suggest there are some very good reasons to think about ways to be kind and actually plan out that type of behavior. Research shows that acts of kindness can make us feel better and improve our health. Researchers also say kindness played an important part in how humans developed. In other words, they say scientific evidence suggests that we are designed to be kind.