One in four teens misses daily exercise target, global data shows

Only 14% of adolescents worldwide meet the daily physical activity standard recommended by the World Health Organization. The organization advises that teenagers engage in at least 60 minutes of moderate to vigorous exercise, such as a brisk walk or intense soccer game, every day to support physical and mental development. A new study published in The Lancet Global Health indicates that most teens fail to meet this benchmark, with one in four reporting fewer than six active days per week.

The data spans 15 years and includes surveys from over 3 million adolescents across 140 countries. Fiona Bull, head of the physical activity unit at the WHO and a co-author of the study, described the findings as disappointing due to the lack of progress. "The findings are disappointing, because one of the major results is that the trend over the last 15 years is flat," Bull said. "These data are a call for us to relook at what we're doing. Business as usual will not change these trends." The global average for active days per week fell below three.

Inequality characterizes the results, particularly by gender and national income. Girls reported lower activity levels than boys in nearly every country surveyed. Approximately 30% of girls reported zero days of physical activity during a typical week, compared to 22% of boys. Daily activity rates were also lower for females, with only 11% of girls active every day versus 17% of boys. Adolescents from middle- and lower-income countries generally reported less exercise than peers in wealthier Western nations.

Andrea Ramirez Varela, an epidemiologist at the University of Texas Health Science Center in Houston, attributed these disparities to environmental factors. In many lower-income regions, the built environment restricts opportunities for movement. Varela noted that rural areas often see higher activity levels due to necessity, while urban centers in Latin America face barriers such as traffic safety concerns and air pollution. "Many parents think it's unsafe to just let your kids walk alone to and from places," Varela said.

Sedentary behaviors and cultural norms also contribute to the gap. Varela observed that digital screens often occupy the time after school, keeping adolescents stationary for the remainder of the day. Solveig Cunningham, a global health researcher at Emory University, pointed to gender-specific taboos, particularly in South Asia. "In many places, when girls reach puberty, there are taboos to engaging in physical activity," Cunningham said. She cited India as an example where family members may discourage girls from spending time outdoors to protect their appearance for marriage prospects.

Cunningham added that while girls may perform active chores like sweeping, this does not equate to the structured physical activity seen in boys' play. Experts suggest that schools represent a practical entry point for intervention. Varela stated, "To move the needle, we need to focus on the settings where kids and adolescents spend most of their time." Data indicates that countries with higher adolescent exercise levels typically provide more structured time for sport during or after the school day.

Varela emphasized that solving the issue during adolescence is necessary to prevent long-term health costs. "Not solving the problem in this stage of life will perpetuate the problem in adulthood," she said. The study concludes that without sustained policy attention and investment in accessible programs, current trends will likely persist.