Giving of yourself — whether it be your time, energy or money — isn’t just a boon to those you’re helping. A wealth of research shows that generosity can also have benefits for the receiver, ranging from a better outlook at your job, to more years of life. Check out these science-backed reasons to make generosity a regular part of your day. It will keep stress in check. Being stingy — and ashamed of said stinginess — is linked with higher levels of the stress hormone cortisol, according to a study from social psychologist Liz Dunn. Scientific American reported on the findings of the study, which examined cortisol levels in response to giving