A new Nature Human Behaviour (2026) study suggests that single-session psychological exercises lasting less than 10 minutes can lead to measurable decreases in depression symptoms even one month later.Depression is one of the most common mental health disorders in the world. Every year, hundreds of millions of people suffer from depression, and many are unable to get therapy because of cost, stigma and the dearth of mental-health professionals.Symptoms include excessive sadness, depression often includes fatigue, changes in appetite, sleep disturbances, difficulty concentrating and feelings of hopelessness. Treatment requires professional guidance for diagnosis and management.A 10-Minute Intervention With Lasting EffectsResearchers conducted one of the largest randomized controlled trials testing short mental-health exercises and recruited 7,505 adults in the United States who were suffering from symptoms of depression and randomly assigned them to one of several short digital interventions or to a control group.All the brief interventions took less than 10 minutes to complete and were designed to teach practical coping skills that are commonly used in psychotherapy. Some exercises helped participants to reframe negative thoughts, while others focused on motivation, goal-setting or making sense of things by helping others. Participants completed surveys measuring their well-being immediately after the session and again one month later.The results were striking: while many exercises boosted motivation and hope immediately, two interventions - Interactive Cognitive Reappraisal and Finding Focus - showed measurable reductions in depression symptoms even after a month. On average, participants experienced about a four percent greater reduction in depression scores compared with the control group. Although the improvement may appear small, researchers note that brief, scalable interventions could reach millions of people who currently lack access to mental-health care as they can be completed in a few minutes and delivered online, these exercises may allow people to take initial steps toward better mental health, especially those waiting for professional help or unwilling to ask for help.The scientists also stressed that these activities are not intended to substitute for therapy, but should be seen as readily available tools to help with emotional health.Exercise and Mental Health: A Growing Body of EvidencePrevious research also shows that a quick burst of activity can make you feel better from other research too. A British Journal of Health Psychology 2024 study found that just 10 minutes of daily mindfulness practice significantly improved well-being and reduced symptoms of depression and anxiety among more than 1,200 participants from 91 countries.Similarly, the US National Institutes of Health (2019) reviews suggest that the physical activity itself may help improve mood and depressive symptoms, strengthening the relationship between movement and mental health.Collectively, these findings suggest that even small doses of mental or physical activity may lead to psychological benefits.A Small Step That Can Make a DifferenceDepression can make people feel trapped and out of control. The good news of the new research is that it suggests that big changes aren’t always necessary to move forward.Sometimes, doing a small task, like spending 10 minutes learning a new coping skill or doing a quick mental exercise, is enough to change the way you think and gradually improve mood.As researchers investigate these brief interventions, one thing is becoming clear: when it comes to mental health, few minutes matter more than we think.