High Blood Pressure in Kids Nearly Doubles Worldwide, Study Finds

High blood pressure is no longer just an adult problem. A new global study published in The Lancet Child and Adolescent Health finds that rates of hypertension among children and adolescents have nearly doubled over the past two decades, signaling a troubling rise in heart-related risks at younger ages.

According to the research, in 2000 about 3.4% of boys and 3% of girls had high blood pressure. By 2020, those numbers climbed to 6.5% and 5.8%, respectively. “With better screening, earlier detection, and a stronger focus on prevention — especially around healthy weight and nutrition — we can intervene before complications arise,” said Dr. Peige Song from Zhejiang University School of Medicine in China, one of the study’s authors.

Experts point to several contributing factors, including childhood obesity, poor diet, stress, and lack of physical activity. Dr. Mingyu Zhang of Harvard Medical School and Beth Israel Deaconess Medical Center noted that exposure to environmental pollutants, including PFAS — or “forever chemicals” — may also increase hypertension risk in children.

The study analyzed data from 96 studies across 21 countries and considered both in-office and at-home blood pressure readings. Researchers discovered that many children have “masked” hypertension — cases that might go undetected during a doctor’s visit but appear in other settings.

“This means that many children with true hypertension could go undetected if we rely only on office blood pressure readings,” Zhang explained. The findings suggest that regular monitoring and more accessible testing are needed to identify at-risk kids earlier.

For parents, experts recommend focusing on healthy habits rather than pressure or restriction. Jill Castle, a pediatric dietitian and author of Kids Thrive at Every Size, advises families to encourage nutritious eating, avoid labeling foods as “good” or “bad,” and sit together for meals to build positive relationships with food.

As Dr. Song emphasized, the key takeaway is awareness: hypertension can begin early, but it’s also preventable with healthy lifestyles, better education, and early intervention.

Credit: CNN Newsource
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