Walking fewer than 2,500 steps a day is so strongly associated with depression that a clinician who sees patients at that level encounters a diagnosis of sadness or depression “almost 100 per cent of the time,” according to Dr Courtney Conley, a chiropractic physician and co-author of Walk: Your Life Depends on It. “If you are only moving 2,500 steps a day, you don’t feel well, physically or mentally,” she says. The observation underscores a broader medical reality: the human body thrives when moved regularly, yet modern life rarely demands it.
The Depression Link
Dr Conley, who specialises in foot and gait mechanics, argues that walking should be “on every doctor’s prescription pad” and describes it as “the panacea of medicine.” She notes that when patients view walking as a physiological necessity — equating 7,000 daily steps to six to eight hours of sleep — they build a foundation of wellness. The link between low step counts and poor mental health is supported by wider research: over half of UK adults who walk (54%) say they do so to improve their mental health and happiness, and a separate study found that adults carrying excess weight have a 55% higher risk of developing depression over their lifetime compared with those who are not overweight. Regular walking has been shown to reduce symptoms of depression and anxiety, increase endorphin levels, enhance focus and lower stress.
NHS Guidelines: What Moderate and Vigorous Mean
The NHS physical activity guidelines advise adults aged 19–64 to accumulate at least 150 minutes of moderate-intensity activity, 75 minutes of vigorous-intensity activity, or an equivalent mixture of the two each week, supplemented by muscle-strengthening activities on at least two days. These targets are also endorsed by the World Health Organisation. “The guidelines are built on a solid evidence base showing that this level of activity significantly reduces the risk of cardiovascular disease, type 2 diabetes, certain cancers and premature death,” says Jack McNamara, a clinical exercise physiologist and course leader at the University of East London. “The problem is that around a third of UK adults don’t meet them.”
Intensity is relative to the individual. Moderate-intensity activity means your heart rate is raised and you are breathing harder, but you can still hold a fairly fluent conversation. For most people this means a brisk walk; for fitter individuals it might mean a jog or a cycle. Vigorous-intensity activity takes you to a point where you are sweating and breathing so hard that you cannot speak in full sentences — an effort you can only sustain for a few minutes at a time. Depending on fitness, this could range from a tough uphill walk to a HIIT workout or running intervals.
Behind these guidelines lie stubborn adherence figures. In England, between November 2024 and November 2025, 64.6% of adults met the recommendations for moderate-intensity physical activity. Yet more recent data suggests that over half of UK adults (55%) do not meet the recommended exercise thresholds, with 15% doing no exercise at all. A 2017 report estimated that around 20 million UK adults — roughly 39% — were failing to meet the government’s physical activity recommendations, and women were 36% more likely than men to be classified as physically inactive. Significant inequalities persist: activity levels are lower among people from lower socio-economic backgrounds, disabled people, older adults (particularly those aged 75 and over), and certain ethnic groups. In deprived areas of England, 35% of adults were physically inactive in 2023–24, compared with 15% in the least deprived areas.
The good news is that walking offers a straightforward route to meeting the guidelines. A little over 20 minutes of brisk walking each day delivers the required 150 minutes of moderate-intensity activity per week. Add one or two short strength-training sessions and you have a healthier routine than most Britons. For those wanting to increase intensity, simple methods exist: pick up the pace, tackle hills, carry a slightly weighted rucksack, or incorporate intervals. Walking uphill can use double the energy of walking on a level surface. Research also suggests that longer walks — 15 minutes or more — and walking immediately after meals offer additional health benefits.
Yet vigorous-intensity activity is not for everyone. “For some people, it may not feel good — and we are unlikely to stick with activities that don’t feel good,” the original article notes. Professor Emmanuel Stamatakis, an associate professor at the University of Sydney whose work focuses on lifestyle physical activity and sedentary behaviour, has published research indicating that many of the benefits of higher-intensity exercise can be achieved through lower-intensity movement — you simply need to do more of it to gain similar effects. His work on “Vigorous Intermittent Lifestyle Physical Activity” (VILPA) shows that even short bursts of incidental activity during daily life can have significant health benefits. Dr Conley echoes the principle: “Anything is better than nothing. You can start with a five-minute walk.”
Walking’s Broad Benefits
Beyond mental health, walking has been linked to improved mood, reduced risk of death from any cause, protective effects against cancer, heart disease and dementia, better blood sugar regulation, injury prevention and improved physical function. A large UK study involving more than 85,000 people found that increasing daily steps can lower the risk of developing up to 13 different types of cancer. Benefits began to appear around 5,000 steps, with an 11% risk reduction at 7,000 steps and a 16% reduction at 9,000 steps. Brisk walking in particular has been linked to a lower risk of five specific cancers: anal, liver, small intestine, thyroid and lung cancer. Physical inactivity costs the UK an estimated £7.4 billion annually.
Cardiovascular health also improves markedly: regular walking can lower the risk of cardiovascular disease by up to 35%. Even short bouts of walking, ideally 10–15 minutes, can maximise heart health benefits, especially for people who are very physically inactive. For dementia prevention, a UK study suggests that between 3,800 and 9,800 steps daily could be recommended, and other research indicates that walking may slow the progression of Alzheimer’s disease — with benefits seen from 3,000 steps a day, and even more significant delays in cognitive decline at 5,000 to 7,000 steps. Lifelong regular physical activity has been linked to changes in the brain that protect against dementia, including a larger hippocampus.
Type 2 diabetes risk also falls with movement. Incorporating short bursts of physical activity such as walking into daily routines can reduce the risk: an average of ten daily bursts of up to a minute was found to cut diabetes risk by 36%. Meanwhile, the average British adult spends six hours a day sitting down, and evidence suggests that a sedentary lifestyle — regardless of overall activity levels — is associated with poor cardiovascular health.
Walking can spark a virtuous cycle, Dr Conley explains. Walking makes you feel better; feeling better gives you the energy to exercise more; people who exercise tend to eat better and sleep better; proper fuel and rest make you more likely to lead an active life; and the cycle continues. Daily step goals vary by individual, but 7,000 steps has been identified by several studies as a time-efficient, health-boosting target. “We should be walking every single day,” Dr Conley says. “It’s a non-negotiable if we want to live well for longer.”