Giving can help your longetivity

Adam Grant says a good rule of thumb is 100 hours per year.

Social connections can be good for us. We are hard-wired for face-to-face contact that includes lots of touch, eye contact, and smiles. Such interactions release a hormone called oxytocin, which helps us bond and care for others, and also helps us handle stress better. Volunteering is a good way to meet others, make friends, and bond over common beliefs and goals.