Three Small Habits That Cut Cardiovascular Disease Risk by 10%
A new British study finds that adding just 11 minutes of sleep a night, 4.5 minutes of moderate-to-vigorous exercise, and about a quarter cup more vegetables each day can lower the risk of major cardiovascular events by about 10%.
The study, published in the European Journal of Preventive Cardiology, analyzed health records of over 53,000 UK Biobank adults followed for about eight years, examining the combined impact of sleep, exercise, and diet on cardiovascular health.
Results show that, compared with improving a single habit, small simultaneous adjustments in sleep, exercise, and diet better reduce the risk of heart attack, stroke, and heart failure.
The researchers estimate that an average extra 11 minutes of sleep per night, 4.5 minutes of moderate-to-vigorous exercise—brisk walking, stair climbing, cycling, or lifting—and about a quarter cup more vegetables add up to roughly a 10% drop in major cardiovascular events.
The researchers note that in real life, sleep, exercise, and diet are not independent but interact. People who sleep well usually have more energy to exercise by day and find it easier to eat healthily; regular exercise improves sleep quality and encourages healthy eating.
They therefore suggest that rather than setting big, hard-to-keep goals, starting with tiny daily changes is easier to sustain long-term and gradually accumulates health benefits.
The results reaffirm the importance of lifestyle in preventing cardiovascular disease.
Most people already know that exercise, fruit and vegetables, and better sleep matter; we just lacked data. This study simply puts scientific numbers behind some common sense.
Some scholars have recorded striking changes after changing their lifestyle. For example, Texas A&M anthropologist Professor Vaughn M. Bryant Jr. once kept a journal about his own experience.
While excavating an archaeological site in southwest Texas, he studied fossilized prehistoric human feces and reconstructed a prehistoric diet based on high-fiber plant foods. Pleased with this reconstruction, he began eating that way, cut back on driving, cycled to campus daily, skipped the elevator for stairs, and walked across campus instead of taking transport.
After living this way for a while, he felt "much better both physically and mentally; I have more energy than before." Without deliberate dieting or calorie counting, he lost 30 pounds in three months. Over the next four years he had no major illness and never took a sick day.
Just changing diet and routine improves modern people's health so noticeably—why not do it?