Short Exercise Sessions Can Significantly Improve Heart Health
Recent research suggests that just five minutes of exercise twice a day can significantly enhance heart health for people who are generally inactive.
The study highlights that even brief bouts of activity, lasting only five minutes, can lead to notable improvements in cardiovascular fitness (CRF). This measure reflects how effectively the heart, lungs, and blood vessels supply oxygen to the muscles.
Improved CRF has long been associated with reduced risks of heart disease, heart attacks, and premature death.
Data from 11 studies with 414 inactive men and women—whose body mass indices varied from normal to obese—indicates that these so-called “exercise snacks” (five-minute sessions performed twice daily, three times a week) can lead to measurable health benefits.
Past studies have shown that activities like climbing stairs or brisk walking for short durations can enhance heart health. For younger and middle-aged adults, stair climbing was the most common brief workout, whether at home or on gym equipment.
In contrast, older adults found gentle leg exercises and tai chi—characterized by flowing movements paired with controlled breathing—to be particularly beneficial.
The researchers published their findings in the British Medical Journal, stating that incorporating such short exercises into daily routines can tackle barriers like time constraints and low motivation.
They also suggested that public health policies should promote these exercise snacks, encouraging movement breaks throughout the day.
The studies reviewed showed that these quick exercises improved CRF by anywhere from 4.6 to 17 percent.
However, no significant improvements were observed in muscular endurance, strength, or cholesterol levels.
Notably, around 70 percent of the participants were women, and the most significant improvements in CRF were seen in individuals aged 19 to 44.
The authors acknowledged several limitations, such as small sample sizes, and emphasized the need for further research to verify these findings. They also pointed out that the study samples were not equally representative of both genders.
Conducted across Australia, Canada, China, and the UK, the exercise programs lasted anywhere from four to 12 weeks.
This research emerges amid a concerning increase in heart-related deaths in the UK, which have surged by 18 percent—from 18,693 to 21,975—between 2019 and 2023.
The British Heart Foundation reports a 21 percent increase in heart failure diagnoses since 2020, the highest recorded level.
Additionally, the number of people experiencing atrial fibrillation—characterized by an irregular heartbeat—has also risen, escalating from 1.48 million to 1.62 million during the same timeframe.
Analysis by the British Heart Foundation revealed an 83 percent increase in the number of patients waiting for planned heart treatments in England since the beginning of the decade until March 2025. Waiting lists have also expanded in Scotland, Wales, and Northern Ireland.
This situation is concerning, as it marks a reversal of decades of progress where annual deaths from heart attacks and strokes had been cut in half since the 1960s.
Experts attribute this rise to unhealthy diets, increased intake of processed foods, the lingering effects of Covid on cardiovascular health, and disruptions to GP and hospital services.
Interestingly, a separate study last year found that simple, everyday activities—like carrying groceries or climbing stairs in short bursts—could reduce the risk of heart attacks in women by half.
Researchers believe that turning these “incidental exercises” into regular habits may be a viable option for women who don’t enjoy or struggle with structured workouts.
Middle-aged women engaging in an average of just 3.4 minutes of such activity daily were shown to be 45 percent less likely to experience a major cardiovascular event, 51 percent less likely to have a heart attack, and 67 percent less likely to develop heart failure compared to those who were inactive.
