Walking reduces major risks
- A study of more than 72,000 people found that increasing daily steps cuts the risk of death and heart disease. (sciencedaily.com) - The protective effect appeared even among people who spend long hours sitting, underscoring step increases' value. (sciencedaily.com) - The researchers highlight simple step increases as a low‑friction strategy to lower cardiovascular and mortality risks. (sciencedaily.com)
Walking more each day was linked to lower risks of death and heart disease in a study of 72,174 adults, even among people who spent long hours sitting. (bjsm.bmj.com) The researchers, led by Matthew Ahmadi at the University of Sydney, used wrist accelerometers from UK Biobank participants with an average age of about 61 and tracked outcomes over roughly seven years. They recorded 1,633 deaths and 6,190 cardiovascular events during follow-up. (news.sky.com) The lowest risks appeared at about 9,000 to 10,500 steps a day for mortality and about 9,700 to 9,800 steps for cardiovascular disease. Compared with a baseline of about 2,200 steps a day, those levels were tied to a 39% lower risk of death and a 21% lower risk of cardiovascular disease. (bjsm.bmj.com) Half of the observed benefit arrived well below 10,000 steps. The study estimated that about 4,000 to 4,500 daily steps delivered roughly 50% of the maximum reduction in mortality and cardiovascular risk. (sydney.edu.au) The paper focused on a simple question: whether walking can blunt the health damage associated with sedentary time, meaning hours spent sitting or otherwise inactive. Participants who logged more than 10.5 sedentary hours a day still showed lower risks when their step counts rose. (bjsm.bmj.com) That matters because earlier research had linked sitting and step counts to health separately, but not as directly in the same device-based dataset. The authors wrote that “any amount of daily steps above the referent 2200 steps/day” was associated with lower mortality and cardiovascular risk in both low- and high-sedentary groups. (bjsm.bmj.com) The findings fit with a broader 2025 review in The Lancet Public Health that pooled data from 31 studies and more than 160,000 adults. That review found about 7,000 steps a day was associated with lower risks of all-cause mortality, cardiovascular disease, dementia, depression, type 2 diabetes, falls, and some cancer outcomes compared with 2,000 steps a day. (thelancet.com) The new study was observational, so it shows association rather than proving that steps alone caused the lower risks. The authors also noted that participants were generally healthier adults who could wear accelerometers for seven days, which can limit how broadly the results apply. (bjsm.bmj.com) Emmanuel Stamatakis, the study’s senior author, said step count is an “easily understood measure” that people and clinicians can track. The paper’s takeaway was narrower than “sitting does not matter”: more movement was linked to lower risk, but the researchers still urged people to reduce long sedentary stretches where possible. (sciencedaily.com)
