The science behind happiness is worth exploring if well-being is an everyday goal—as it should be! With today being International Day of Happiness, what better time to ponder how to find happiness?

While it may seem obvious that doing things to feel good will trigger “happy hormones” like serotonin and dopamine, exactly what will make you happy may actually surprise you.

Example: did you know that giving back boosts happiness? It’s called a “helper’s high,” and it’s the result of a release of endorphins in the brain that leave you with a feeling of inner warmth and calmness.

Sound like something you need more of in your life? Then get volunteering!

Below, three inspiring tales of compassion and human kindness to spark that giving spirit.

Over 50 percent of Meridian Middle School’s 600 students get free and reduced-cost lunch each day, while also visiting the local food bank with their families. With the challenge of food insecurity so close to home, students of the school wanted to help their peers and take action against hunger in the community.

Watch as seventh and eighth graders raise awareness around the issue in this heartwarming story of kindness in action.

Knowledge sharing is its own form of giving back.

See this inspiring truth come to light as a group of American medical practitioners experience the mutual benefits of a peer-to-peer skills exchange with fellow health care professionals at the Baraka Hospital in Kenya’s Maasai Mara.