Too much sitting may shorten your life.
Researchers often refer to the problem as “sitting disease,” and a growing body of evidence suggests prolonged sedentary time raises the risk of chronic illness and early death.
Fortunately, the solution may be simple. Just getting up and walking more during the day can help reduce many of the health risks associated with long periods of sitting.
A 2026 study from the University of Sydney’s Charles Perkins Centre examined whether walking could offset some of the dangers linked to sedentary behavior.
The findings were published in the British Journal of Sports Medicine in 2026.
Researchers analyzed activity data from more than 72,000 people and discovered a clear pattern: as daily step counts increased, the risk of death and cardiovascular disease decreased.
The benefits rose steadily until about 10,000 steps per day.
At that level, the risk of early death was about 39 percent lower compared with adults who took very few daily steps.
The risk of developing cardiovascular disease dropped by roughly 21 percent.
One particularly interesting finding was that these benefits appeared regardless of how much time the participants spent sitting.
Thus, even people who were sedentary for long periods at a time still gained measurable health benefits by walking more.
A significant amount of previous research has also shown that sitting for extended periods is associated with higher rates of heart disease, blood clot formation, back pain and premature death.
What made this study different is that it examined whether simply walking could counteract some of the negative effects of sedentary behavior.
The researchers relied on objective data collected from wearable devices — making the data more accurate than subjective reporting.
The paper does explain that walking more is not the perfect solution for excessive sitting.
But it also mentions that increasing daily activity can still help reduce some of the harmful effects of sedentary time.
Even small increases in movement during the day can benefit a sedentary body.
How was this study carried out?
To conduct the study, scientists used data from 72,174 participants in the UK Biobank. The average participant was 61.
Each individual wore a wrist-based accelerometer for seven days to track the quantity of steps as well as time seated or lying down while awake (sleep time was excluded).
The team then tracked participants’ health outcomes over time by linking the activity data to hospital records and national death registries.
On average, participants walked about 6,222 steps per day. The least active group averaged around 2,200 steps daily and served as the baseline for comparison.
Participants also spent a large portion of the day sedentary. The average sedentary time was about 10.6 hours each day.
Those who sat for 10.5 hours or a day were classified as highly sedentary, while the subjects who sat less than that were considered less inactive.
Researchers excluded subjects who already had serious health problems or experienced major health events within two years of the follow-up period.
They also adjusted the analysis to account for other factors that could influence health such as drinking, smoking, eating habits and age. Participants were followed for about seven years on average.
During that time there were 1,633 deaths and 6,190 cases of cardiovascular related disease.
The Results
The greatest health benefits were seen among the participants who walked between 9,000 and 10,000 steps every day.
But walking fewer steps than this amount also showed major benefits: 4,000 to 4,500 steps per day.
Keep in mind, says the paper, that this study doesn’t show cause and effect; it shows only an association. But this association is definitely something to talk about.
One of the limitations was that step counts and sitting time were measured only once, which may not perfectly reflect activity over a long time.
But that all aside, these study results still come out as remarkable, adding to the already massive volume of research showing that we all must be very aware of the chair.
