In other words, the brain adapts our mood to the expression on our face. Smiling can even increase creativity and cognitive capacity, because “there is an increase in endorphins, neuropeptides, dopamine, and serotonin,” says Ramón. “These hormones act together to decrease stress, lower heart rate, increase productivity and reduce anxiety.”

Smiling for longevity

According to longevity experts, social relationships are a kind of life insurance—and so is laughter. A study conducted by researchers at Wayne State University found that people who smile more frequently live four to five years longer than those who smile less frequently. The finding confirms ancient beliefs: “The Chinese Taoists believed in the power of smiling to heal the soul and bring longevity,” notes Dr. Eugenia Cervantes.

Smiling is also contagious, thanks to mirror neurons that evolved to increase empathy and improve social connection. “When you smile, it generates a domino effect among others, creating a spontaneous good vibe,” says psychologist Laura Palomares.

What if I don’t feel like smiling?

Of course, there are days when you simply don’t feel like smiling—and it’s important not to bury your authentic emotions. “We need to let ourselves feel all types of emotions,” explains Ramón. “But it is helpful to know that we can develop resources and strategies that help us in our daily lives and that we can be co-creators of our own reality.”

Engaging in activities that help us manage stress—such as mindfulness, meditation, or deep breathing exercises—can help calm the nervous system. “This allows the brain to reallocate resources and helps restore a more balanced neurochemical environment, which can support dopamine production,” says Markopoulos.

To that end, engaging in positive activities that directly trigger the brain’s reward system can also lead to a release of dopamine. “When we do something we enjoy, whether it’s listening to music, spending time with loved ones, exercising, or achieving a small goal, the brain rewards us with a burst of dopamine,” says Markopoulos. “This feel-good signal reinforces the behavior, making us more likely to repeat it.” Below, Markopoulos shares more tips for triggering dopamine.

Tips for triggering dopamine

Set and achieve small goals: Accomplishing a task, no matter how minor, provides a sense of accomplishment and a corresponding dopamine release. Try making a to-do list and crossing items off throughout the day.