“Since twins were used, this removed the genetic variable,” said Skinner. This means they have lower risk of metabolic syndrome, a condition that can lead to stroke, type 2 diabetes, and heart disease. Those in the twin pairs who were more active had lower signs of metabolic disease, such as excess body fat around the waist, high cholesterol, high blood sugar, and elevated blood pressure. That’s especially true because many of the twin pairs had different amounts of regular physical activity compared to one another. Because these twins had the same genetics and environmental factors growing up, it was easier to determine how exercise played a role in health risks, all the way down to a molecular level.
New research in the journal Scientific Reports looked at how exercise affected 70 pairs of identical twins over a seven-year period. The researchers looked at both moderate- and vigorous-intensity physical activity and while both improved cellular function, vigorous exercise did so more significantly.īecause exercise can have profoundly different effects from one individual to another, it’s tricky to generalize benefits-unless you’ve recruited identical twins for your study, that is.A study published in Scientific Reports, involving 70 pairs of twins, found that while exercise can’t change your DNA or genetic risk for disease, it can alter how your body reads a DNA sequence, helping to lower your risk for chronic conditions like metabolic disease-even if it runs in the family.
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