Are kindness and generosity something that your momma taught you or do you think people are just born nice, or mean?

A new study says it could be a little of both, largely dependent on how we view the world.

The results showed people who viewed the world as a threatening place to be were generally less likely to exhibit behaviors linked to niceness — unless they had those genetic receptors. In other words, the genes predicted behavior only in combination with people’s experiences and feelings about the world.