It's dubbed "the helper's high."

Researchers say the satisfaction people get from volunteering can cause a rush of euphoria, followed by a longer period of calm...This "feel-good sensation" should aid health by reducing stress with the release of endorphins, the body's natural painkillers.

The initial rush is followed by a longer-lasting period of improved emotional well being, which volunteers believed to be vital to health improvements they experienced.

  —Carmela Fragomeni, "Today's fitness tip: Become a volunteer," The Hamilton Spectator, April 24, 2002

Do you ever get 'high' helping others?  Well, if you need some assistance in doing so, I can help you: Help Me!