The number you have been told your whole life — 150 minutes of moderate exercise per week — may be dramatically undershooting what your heart actually needs. A major new study published in the British Journal of Sports Medicine on May 19, 2026, found that the standard guideline provides only a fraction of the cardiovascular protection most people assume they are getting. The real target, according to researchers, is nearly four times higher. And only 12% of the study’s 17,000+ participants were hitting it.
Key Takeaways
- Current WHO/AHA guidelines recommend 150 minutes of moderate exercise per week — but a new study says this is just a baseline
- At 150 minutes per week, cardiovascular risk drops by only 8–9% compared to sedentary individuals
- For a 30%+ risk reduction, researchers found you need 560–610 minutes per week — about 80–87 minutes of movement daily
- Only 12% of 17,000+ study participants reached the 600-minute weekly target
- The biggest gains come from going from zero activity to any activity — even small increases help immediately
The Study That Changed the Numbers
Researchers at Macao Polytechnic University analysed data from more than 17,000 adults enrolled in the UK Biobank — one of the world’s largest biomedical databases — tracking their health outcomes over approximately eight years. The participants wore accelerometers to objectively measure how much they actually moved, rather than relying on self-reported estimates that tend to be inflated.
Over the follow-up period, 1,233 cardiovascular events occurred: 874 cases of atrial fibrillation, 156 heart attacks, 111 heart failure cases, and 92 strokes. By comparing activity levels to outcomes, researchers could precisely map how much exercise corresponded to how much protection.
The findings were striking:
- 150 minutes per week reduced cardiovascular risk by 8–9% compared to the least active group
- 370 minutes per week pushed risk reduction to 20%
- 560–610 minutes per week delivered 30%+ risk reduction
- The protective benefit continued to increase up to around 600 minutes, with diminishing returns beyond that point
What 600 Minutes Per Week Actually Looks Like
Before alarm sets in: 600 minutes of exercise per week does not mean spending two hours at the gym every day. The study counted all moderate-intensity physical activity — which includes brisk walking, cycling, swimming, yoga, gardening, and even active household chores. Breaking it down makes it far more achievable:
What 600 Minutes Per Week Looks Like in Practice
45 min morning walk + 45 min evening walk daily. This alone gives you 630 minutes per week. No gym required — just consistent walking twice a day.
60-min gym sessions 5 days + 30-min walks daily. Structured workout schedule totalling 510 minutes, supplemented with walking to hit the 600+ target.
Active commute + lunch walks + evening activity. 30-min cycle commute + 20-min lunch walk + 40-min evening activity = 90 min per day without a single dedicated workout session.
Weekend warrior + daily walking. A 3-hour sports session on Saturday + 3-hour hike Sunday + 30-min walking on 5 weekdays = 570+ minutes with just two big weekend sessions.
What the Experts Say
The study’s findings prompted responses from independent cardiovascular specialists who were not involved in the research.
Keith Diaz, associate professor at Columbia University, noted that higher activity levels are consistently associated with lower heart disease risk and that the relationship between activity and heart protection does not plateau at 150 minutes. “That number has always been a minimum, not an optimum,” he said.
Kevin Shah, cardiologist at MemorialCare, described 150 minutes as “a solid baseline — but it is just that: a baseline.” He added that patients who hit the standard guideline and wonder why their cardiovascular risk remains elevated are experiencing exactly what this study explains.
Michael Fredericson, professor of orthopaedic surgery at Stanford, offered the most actionable perspective: “The most important group is the completely inactive. For someone going from zero to any consistent activity, the cardiovascular gains are the largest proportionally. That is where public health messaging should focus — not on discouraging people with a 600-minute target, but on celebrating the massive benefit of even 30 minutes a day.”
The Good News: Every Step Counts
The most reassuring finding in the study is the shape of the risk-reduction curve. The steepest drop in cardiovascular risk occurs in the transition from completely sedentary to moderately active. Going from zero to 150 minutes per week delivers an initial 8–9% reduction. But critically, going from 150 to 300 minutes delivers an additional significant reduction — and each further increment continues to help, all the way up to 600 minutes.
In practical terms: if you are currently doing nothing, a 20-minute walk every day will transform your cardiovascular risk profile. If you are already at 150 minutes, adding just two more 30-minute sessions per week provides measurable additional protection. You do not need to leap from zero to 600 — every step along the continuum counts.
The Role of Omega-3s in Exercise and Heart Health
Exercise works, but nutritional support amplifies its cardiovascular benefits. One of the most evidence-backed complements to aerobic exercise is omega-3 fatty acids — specifically EPA and DHA from marine sources. Multiple large trials have shown omega-3s reduce triglycerides, lower resting heart rate, improve arterial elasticity, and reduce systemic inflammation — all mechanisms that work synergistically with the adaptations from regular exercise.
For people who exercise regularly but eat little or no oily fish — a common pattern across India — an omega-3 supplement bridges the most significant nutritional gap:
Combining regular exercise with omega-3 support is one of the most evidence-backed strategies for heart health. Check out Neuherbs Deep Sea Omega-3 2500mg on Amazon.in — one of the best-rated omega-3 supplements in India, providing the EPA and DHA that most Indian diets are missing. Particularly useful if you do not eat oily fish regularly.
Dr. Ajit Jha’s Clinical Perspective
“Most of my patients feel proud if they manage 30 minutes of walking three times a week — and I tell them that is genuinely better than nothing. But this study confirms what we see clinically: the patients with the best long-term cardiovascular outcomes are not the ones who exercise the recommended amount. They are the ones who have made movement a constant part of their day — walking to the market instead of driving, taking stairs, cycling. The 600-minute target sounds frightening but it is not — it is simply describing what active people naturally do when they stop treating exercise as a separate activity and start treating movement as the default mode of living.”
— Dr. Ajit Jha, MBBS, MD Medicine, IMA Lifetime Member
Frequently Asked Questions
Is 150 minutes of exercise per week useless?
Not at all — it reduces cardiovascular risk by 8–9% compared to being sedentary, and it provides many other health benefits including weight management, blood sugar control, and mental health improvements. The new study simply shows that 150 minutes is a floor, not a ceiling. Think of it as the minimum viable dose of exercise, not the optimal one.
Does this apply to Indians specifically?
The study population was predominantly white and from the UK, which is a limitation. However, the biological mechanisms linking aerobic activity to cardiovascular protection are universal. Indians actually have a higher genetic predisposition to cardiovascular disease and type 2 diabetes compared to European populations — making the case for higher activity levels even stronger for Indian individuals.
What counts as moderate-intensity exercise?
Moderate intensity means you are breathing harder than normal but can still hold a conversation. Brisk walking above 5 km/h, cycling at a comfortable pace, swimming, dancing, yoga, badminton, and active household chores all count. Running and HIIT are vigorous intensity — they count at a roughly 2:1 ratio, so 30 minutes of running is equivalent to approximately 60 minutes of brisk walking for cardiovascular purposes.
Do I need to do all 600 minutes in structured exercise sessions?
No. The study tracked all moderate-intensity physical activity using accelerometers — including walking, gardening, active commuting, and household activity. Any sustained movement that raises your heart rate to moderate intensity counts. The most practical approach for most people is to combine structured exercise sessions with deliberate movement choices throughout the day.
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