The fundamental question this new data raises is stark: are Australians actually aware of how sedentary their lives have become? For the first time, objective measurement rather than self-reporting gives us an uncomfortable answer.
In 2023, more than 4,000 people volunteered to take part in a study carried out by the Australian Bureau of Statistics that tracked their physical activity and sleep using wrist-worn accelerometers. It was the first time Australia's statistics bureau has used wrist-worn devices to learn about the country's sleep and physical activity. The result: a snapshot of a nation that talks about health and fitness far more than it practises either.
Adults did four minutes a day of vigorous physical activity and one hour and 45 minutes a day of moderate physical activity on average in 2023, and spent a further two hours and 37 minutes a day doing light physical activity and were inactive for 11 hours and 54 minutes a day, outside of sleeping overnight. Nearly twelve hours of inactivity daily. That statistic sits there, demanding acknowledgement.
The picture for young people is worse. Five to 11 year-olds did one hour and 24 minutes of moderate or vigorous physical activity, compared to only 40 minutes for teens. Teenagers fall far short of the widely accepted guideline of 60 minutes of moderate-to-vigorous activity daily. This is not a minor shortfall; it is a gap of 50 per cent.
Sleep tells a different story, at first glance. Adults slept for seven hours and 36 minutes each night on average, sleeping longer on weekend nights at seven hours and 55 minutes. That averages out reasonably well against the recommended seven to nine hours. Yet the data conceals significant disparities. One in 10 adults (9.1 per cent) slept for less than six hours a night on average.
Some of these disparities are traceable. Females slept 13 minutes longer than males, while those who lived in regional Australia got an extra nine minutes compared to those who lived in cities. Living with dependent children shaved an average of 16 minutes off the time someone snoozed. People who worked more than 35 hours a week slept 20 minutes less than people who worked less than 35 hours a week. Economic pressure and family responsibility steal sleep in measurable increments.
Children aged 12 to 17 years who had screens in their bedroom slept 29 minutes less on average than those who did not. This is a policy-relevant finding that transcends simple self-help advice. It suggests that technology's presence is not neutral; it actively disrupts essential restoration.
Consider, though, what this data does not tell us. The study captured a single snapshot using research-grade accelerometers under controlled conditions, with volunteers who chose to participate. The voluntary nature of the sample introduces selection bias: people concerned enough about health to volunteer may be more active or sleep-conscious than the broader population. They may, conversely, be people troubled by their habits seeking objective measurement. Researchers at the University of Sydney have noted that consumer devices operate on proprietary algorithms that are "black boxes" to scientists, and there is a lot of variation between brands and models, frequent model updates, and strict corporate rules around data ownership and privacy. This ABS study uses research-grade equipment, side-stepping that problem. But the finding that Australians are less active than self-reports suggest remains uncomfortable whether measured at 11 hours 54 minutes or 12 hours of daily inactivity.
The counter-argument deserves serious consideration: aggregated averages mask genuine diversity. Some Australians exercise regularly. Others face structural barriers—cost, rural location, disability, caring responsibilities—that no individual choice can overcome. The 40 minutes of activity averaged by teenagers includes those in organised sport alongside those in circumstances that make physical activity aspirational rather than achievable. Policymakers comparing Australia to other nations must account for heat, distance, and economic constraints that shape how people move through their days.
Yet the data remains instructive. The average Australian adult takes around 9,000 steps a day. That is below the popular 10,000-step target but not drastically so. The problem is not steps; it is intensity. Four minutes of vigorous activity daily is the problem that deserves focus.
This matters because chronic disease prevention depends on intensity, not merely movement. Low-intensity activity helps, but the cardiovascular and metabolic benefits of vigorous exertion cannot be fully replaced by light activity accumulated over hours. An Australian population exercising at 25 per cent of recommended intensity is not marginalising a healthy habit; it is making a health crisis predictable.
Policymakers should resist the temptation to blame individuals for these numbers. Sedentary work is economically efficient; built environments in sprawling cities favour cars over walking; work hours consume time that activity requires. The data does not indict Australians for laziness; it indicts systems that make vigorous activity difficult to sustain.
This is not primarily a left-right political issue. It is an issue of competence and institutional capacity. Previous governments have funded physical activity campaigns that achieved limited results. The reason becomes clear here: exhorting people to exercise when economic, temporal, and environmental structures work against activity is like shouting at someone drowning while refusing to extend a rope.
The ABS has done something valuable: measured what was previously guessed at. Now comes the harder work: acting on what the measurement reveals. If Australians are to move more vigorously and sleep better, the wrist-worn accelerometer must not be the end of this inquiry. It must be the beginning.