Meeting the recommended physical activity guidelines could halve your risk of premature death, according to a landmark 15-year study, underscoring the profound impact of consistent movement on longevity.
The research, led by Dr Binh Nguyen from the University of Sydney, followed women aged 47 to 52 and found those who consistently achieved at least 150 minutes of moderate-intensity physical activity per week had about half the risk of premature death as those who remained inactive. Critically, Dr Nguyen’s earlier work found this demographic could improve their quality of life and health for years to come through exercise, even if they did not start until their 50s.
What Counts as Exercise?
This life-extending activity does not require formal sport or gym sessions. The World Health Organization (WHO) recommends adults aim for at least 150 minutes of moderate-intensity activity weekly, or 75 minutes of vigorous activity, alongside muscle-strengthening exercises on two or more days.
Moderate-intensity activity is defined as anything that raises your heart rate and breathing but still allows you to hold a conversation. Examples include brisk walking, gardening, dancing, or playing with children. For those with minimal movement, Dr Nguyen notes that even light activity like a slow walk or stretching can still reduce mortality risk.
For existing exercisers seeking further benefits, the focus shifts to vigorous-intensity activity. This refers to movement that significantly raises your heart rate, making it difficult to talk in full sentences. Professor Emmanuel Stamatakis, also from the University of Sydney, explains that “vigorous-intensity” is a relative term: for a non-exerciser, it could mean a faster-paced walk or tackling a hill.
His research found that between five and ten short bursts—up to 60 seconds each—of such vigorous activity daily were associated with a 30 to 50 per cent lower risk of cardiovascular disease, cancer, and mortality. These bursts can be incorporated into daily life as Vigorous Intermittent Lifestyle Physical Activity (VILPA), such as carrying heavy shopping or taking stairs at pace.
Sustainable Swaps for Lasting Health
The overarching message from experts is that drastic overhauls are rarely sustainable. Instead, small, consistent habit tweaks compound over time to create significant health benefits. NHS GP Dr Radha Modgil advocates for this approach, promoting manageable swaps like adding extra vegetables to meals, maintaining a semi-regular sleep schedule, and using practical methods to reduce alcohol intake.
The principle of consistency over intensity applies to habit formation itself. Research suggests building a new, automatic habit can take around 66 days on average, making small, sub-one-minute “micro-habits” more sustainable than ambitious resets.
For those who already walk regularly, the next step is to gently increase the challenge. Professor Stamatakis’s work indicates that longer, continuous walks of 10-15 minutes are more beneficial for cardiovascular health than the same number of steps accumulated sporadically. Incorporating those short, vigorous bursts into a daily walk can further enhance benefits.
The evidence confirms that it is never too late to start, and any movement is better than none. The body adapts to overcome new physical challenges, leading to more efficient heart and lungs, stronger bones and muscles, and increased mobility. The path to a longer, healthier life appears to be built not through fleeting extremes, but through the steady, accessible practice of moving a little more, a little more often.
