Happiness makes your brain work better, Harvard researcher Shawn Achor once told Inc.com. All of us, especially hard-pressed business owners, could definitely use our brains to be at our sharpest in the midst of the current crisis. But let’s be honest, now isn’t the easiest time to stay positive.

For some folks with mental health issues, the challenges go way beyond cabin fever and everyday anxiety. But for those of us lucky enough to be dealing with garden-variety grumpiness, science has good news. Simple interventions that are doable for nearly everyone can have a profound effect on your mood. Psychology writer Nick Wignall brilliantly summed them up on Medium as the three M’s.