(^Article from Berkley citing several studies on why doing good deeds makes you feel good not just emotionally but biologically as well)
2. It’s the morally right thing to do.
As in, it builds good Karma. (In the Steve Jobs biography by Walter Isaacson he talked about the point in which Apple was coming up with iTunes. Everyone was stealing music on the Internet and Steve didn’t agree with that, he wanted a different solution. When the media was critical of iTunes in the beginning Steve was questioned about if iTunes was viable and if it would last, his response was “stealing music isn’t going to last, it’s bad Karma.”
Stealing music hasn’t stopped but iTunes has done very well since it’s inception. Jobs was right, we don’t mind paying a small amount for music, it’s the morally right thing to do.
Everyone could use a little more Karma.
3. The more people you’ve helped, the more people there are out there to help you in the future when you need it most.
Reciprocity suggests that doing things for others is the best way to help yourself in the long run. We’re all going to stumble in the future, we’re all going to make mistakes, you can guarantee it. If you help people without expecting anything in return, when you’re at your worst the people you’ve helped will step up and be there for you.
Go on, make some good Karma.
Help people, even when you know they can’t help you back.