Infographic: The Science of Giving
That's why, according the infographic, "a single of act of kindness can inspire several more acts of generosity."
This obviously relates to fundraising and charity as well. Giving back is just as much a gift for the giver as it is for the recipient. Volunteering is associated with higher levels of life satisfaction, and according to Happify, "in 120 out of 136 countries, people who donated to charity in the past month reported a greater satisfaction with life" — and this is true for poor and rich countries alike.