A large-scale study published in the British Journal of Sports Medicine offers a practical solution to the well-known health risks of prolonged sitting: take a five-minute walking break once an hour. Researchers led by Keith Diaz, an associate professor of behavioral medicine at Columbia University Medical Center, found that even when participants fell short of the hourly target, they experienced a roughly 25% reduction in fatigue and reported better moods and higher productivity.
The study involved more than 19,000 adults across a wide range of ages, jobs, and work environments. Participants were asked to take five-minute walking breaks every 30, 60, or 120 minutes. In real-world conditions, people managed only four to five breaks per day on average—well below the hourly ideal—yet still saw meaningful benefits. Diaz described the results as striking, noting that the average participant's fatigue dropped by about a quarter. «You're gonna feel that difference at the end of your day,» he said.
The findings challenge the common assumption that taking breaks hurts productivity. Instead, participants reported feeling more engaged in their work and more productive. «Counter to everybody's concerns, this actually may help,» Diaz said. The study also found that the more movement breaks people took, the greater the improvements in mood, with bad moods declining and good moods increasing.
Diaz explained that the benefits stem from both mechanical and chemical effects. Sitting for hours reduces blood flow to the brain, which the brain interprets as tiredness. Movement restores circulation. Additionally, contracting muscles releases tiny chemicals that travel through the blood to the brain, helping to activate feel-good hormones. «Our muscles are more than just the machinery that powers movement,» Diaz said. «They have an important interplay with our brain in terms of how to regulate our mental health, our brain health.»
The researchers settled on the hourly target as a balance between effectiveness and realism. Moving every 30 minutes delivered the biggest benefits but was exhausting to maintain, while moving every two hours was easy to stick to but less effective. The 60-minute interval emerged as the sweet spot: manageable with meaningful results.
For those who cannot leave their desk, Diaz emphasized that walking is not the only option—muscle contraction is the key. Simply standing is not enough. He recommended a simple no-equipment routine: one minute of squats, one minute of high knees, and one minute of calf raises. «That has the same effects as if you went for a walk,» he said. Under-desk pedals, mini ellipticals, and walking pads also work.
Diaz advised thinking of the hourly target as a guide rather than a commandment. He suggested aiming for at least five movement breaks per day, as the biggest payoff comes from going from zero breaks to a few. «I don't think people should beat themselves up if they can't get it,» he said. To make the habit stick, he recommended tying movement breaks to existing routines, much like brushing teeth is tied to getting dressed or heading to bed. «Nobody needs a reminder to brush their teeth,» he noted, suggesting that movement breaks can become similarly automatic.