Lack of Exercise Among Youth Threatens Future Health — WHO Issues Warning

Lack of Exercise Among Youth Threatens Future Health — WHO Issues Warning

"Just Exercise More" Won't Change Things—WHO Warns of Youth Inactivity and Adult Challenges

After coming home from school, finishing homework, and staring at a smartphone, night falls. Many adults might feel the urge to say, "Why don't you move a bit?" when they see children like this.

But does that child have a safe place to play? Are there activities they can join even if they're not good at sports? Can they have opportunities to be active with friends without the burden of costs or transportation?

The World Health Organization (WHO) released estimates on youth physical activity on November 4, 2026, highlighting issues that cannot be resolved by the child's motivation alone.

It was reported that about one in four 11- to 17-year-olds worldwide said they had not had a single day in the previous week where they engaged in "moderate to vigorous physical activity for at least 60 minutes." This estimate equates to approximately 240 million individuals.

These numbers should not end with a lecture to the youth. The real question is whether physical activity is naturally integrated into daily life.


"Zero Active Days" Doesn't Mean "No Movement at All"

In this report, it's crucial to understand the definition of "active days."

In the study, an active day is defined as a day when moderate to vigorous physical activity is performed for a total of 60 minutes or more. It's not merely about going out or playing sports.

For example, even if someone walks briskly for 30 minutes every day, it won't count as an active day under this metric unless the total activity reaches 60 minutes.

Therefore, saying "one in four didn't move at all for a week" would misrepresent the reality. The issue is the lack of opportunities for activities that meet certain intensity and duration.

Moreover, 60 minutes is not a threshold that implies "it's meaningless unless you move this much." For children with low activity levels, increasing opportunities to move within a manageable range is the starting point.

Numbers are tools to understand the situation, not to divide individual lives into pass or fail.


Data from Over 3.2 Million Shows 15 Years of Stagnation

This study, published in the medical journal "The Lancet Global Health," used data from over 3.2 million young people, based on 389 population-based surveys conducted in 140 countries and regions.

According to WHO, the average number of active days reported by young people was 2.7 days per week. Only 14% reported being active for 60 minutes or more on all seven days.

More concerning is that the state of physical activity among young people has remained almost unchanged over the past 15 years.

Even if the knowledge that exercise is important for health spreads, it alone doesn't change daily behavior. Without safe places, it's hard to go outside, and if costs are high, it's difficult to continue. If school or family schedules are packed, free playtime is often pushed aside.

However, this study is based on self-reported estimates from young people. It's not the result of measuring everyone's movements with activity trackers, and the numbers alone cannot pinpoint a single cause for inactivity.

Instead of quickly blaming "smartphones" or "lack of parental supervision," we need to consider what conditions make it difficult to be active.


Why Are There Fewer Activity Opportunities for Girls?

The gender gap was also clear.

The percentage of those who reported not having a single day of 60 minutes of activity was 28% for girls and 22% for boys. Conversely, the percentage of those who were active all seven days was 11% for girls and 17% for boys.

WHO explained that in almost all countries and regions, girls' activity levels were lower than boys'.

This does not lead to the conclusion that "girls don't like exercise." The numbers indicate differences in activity situations, not directly proving differences in personal preferences or abilities.

What schools and communities need to consider is what the individuals want to participate in and what hinders their participation.

Are there only competitive activities to choose from? Is there an atmosphere that welcomes beginners? Are there concerns about being watched, clothing, or changing facilities? Is the safety of return times and travel routes ensured?

These points need to be confirmed by listening to the voices of those involved in each region. Before trying to change "children who don't participate," we should review whether "conditions that make participation easy" are in place.


In SNS Discussions, Costs and Adult Involvement Are Key Issues

The issue of youth exercise is not explained by the motivation of the individuals alone, even on social media.

On the overseas bulletin board-style SNS Reddit, various opinions were shared in a thread asking whether the biggest problem in youth sports is "coaches, parents, or costs."

 

The following is not a direct response to the recent WHO announcement but a summary of related discussions on the same theme. These are personal experiences and opinions, not surveys representing society as a whole.

Posts criticizing the focus on costs pointed out that youth sports have become revenue-driven, with children's development taking a back seat.

On the other hand, a poster who claimed to have experience running a nonprofit basketball organization mentioned the difficulty of booking facilities and the costs of gym usage. They pointed out that the high costs are due to the realistic expenses borne by the organizers.

Regarding the involvement of coaches and parents, there were opinions that adults prioritizing wins and their expectations too much can make children lose interest in the sport.

What these discussions make us consider is that having "opportunities to participate in sports" is not the same as "being able to move freely and enjoyably."

Children who wish to engage in serious competition need those opportunities. At the same time, places where children who just want to play a little on weekends or enjoy time with friends rather than improving skills can participate are also necessary.


In Japan, It's Not Just About "Being in a Club"

When considering children's exercise in Japan, the presence of club activities and sports clubs is significant.

However, physical activities that contribute to health are not limited to competitive sports. The Ministry of Health, Labour and Welfare's "Physical Activity and Exercise Guide for Health 2023" explains that physical activities include not only sports and physical education but also daily activities like commuting and housework.

Even children not in club activities can move their bodies through daily commutes and play. Conversely, just knowing a child is in a club doesn't reveal their overall activity level.

To apply these insights in Japan, we should look beyond "how many are in sports clubs" to the daily options available.

For example, is there time to move between classes? Are there places available for short periods after school? Are there activities that can be joined without competitive experience? Is the system biased towards requiring costs and transportation?

We cannot directly apply the global percentages to Japanese children. However, the perspective of considering activity opportunities from the living environment is useful in Japan as well.


"60 Minutes a Day" Doesn't Mean Continuous Training

Hearing "60 minutes" might make it seem difficult to secure a substantial amount of exercise time every day.

However, physical activity doesn't need to be done all at once. The U.S. National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK) also introduces the idea of dividing physical activities into commuting, school activities, and after-school time for young people.

Activities that can be combined into daily life include brisk walking, play during breaks, dancing, cycling, and ball games that the individual enjoys.

Not all slow walks or standing movements correspond to the moderate to vigorous activities defined in this study. However, they can serve as an entry point to reconsider a sedentary lifestyle.

Children with low activity levels don't need to be suddenly tasked with long hours of exercise. The Ministry of Health, Labour and Welfare's related commentary encourages even small amounts of physical activity while cautioning against overly intense exercise or overuse.

It's important not to focus solely on achieving goals but to find a way to continue based on the individual's condition and preferences.


What Lies Beyond Reducing Smartphone Time

When it comes to children's inactivity, smartphones and games often come up in discussions.

Reevaluating sedentary time is meaningful. However, reducing screen time doesn't automatically lead to more outdoor play or sports.

There might be no place to play outside. Meeting friends might require transportation. Available activities might be expensive. In such situations, time not spent on smartphones might be replaced by other sedentary activities.

When discussing at home, it's worth considering "what can be enjoyed during that time" alongside rules for usage time.

Walking together, playing nearby, or dancing to favorite music at home—providing small options that the individual can choose from is a step towards not ending with just prohibition.

This doesn't mean the study proved the effectiveness of specific household measures. It's a proposal to concretize the perspective of creating an environment within daily life.


Before Getting Kids Moving, What Can Adults Change?

WHO Director-General Tedros emphasized that simply asking young people to try harder won't solve the problem. The idea is to create schools, roads, and communities where being active is safe, easy, and natural.

This approach is relevant to both children who are good at sports and those who are not.

Places for physical activity don't always need to be tied to evaluation or selection. There should be times when even if you can't win, run fast, or join from the start, you can still enjoy yourself.

What adults can do is not just repeatedly tell children to exercise. It includes increasing accessible places, lowering financial barriers, ensuring safe transportation, and listening to the children's own wishes.

When asking "why aren't they moving," we should also ask, "are we providing options that make them want to move?"

The key to changing 15 years of stagnation might lie more in everyday life than in children's determination.


Sources and References

  1. BUSINESS-PANORAMA/AFP: Introduction of WHO estimates, definition of active days, gender differences, and statements by Director-General Tedros.
    https://business-panorama.de/news.php?newsid=6716920

  2. WHO: Official announcement on November 4, 2026. Confirmation of the scale of the study, global estimates, and the need for an activity-friendly environment.
    https://www.who.int/news/item/04-11-2026-one-in-four-adolescents-worldwide-reported-no-active-days-in-the-previous-weekwho.int

  3. Oxford University: Explanation by researchers involved in the study. Confirmation of the method of measuring active days and the positioning of the study.
    https://www.ox.ac.uk/news/2026-11-04-only-one-in-six-uk-adolescents-is-active-every-day-major-new-report-findsOxford University

  4. Ministry of Health, Labour and Welfare, e-Health Net: Explanation of the "Physical Activity and Exercise Guide for Health 2023" for children. Reference to the scope of physical activity, intensity, the idea of starting from small amounts, and caution against excessive exercise.
    https://kennet.mhlw.go.jp/information/information/exercise/s-00-003Health Japan 21 Action Support System Website

  5. NIDDK: Health information for young people. Reference to the idea of not doing physical activities all at once but dividing them throughout daily life.
    https://www.niddk.nih.gov/health-information/weight-management/take-charge-health-guide-teenagersNIDDK

  6. Reddit, r/CoachingYouthSports: Related discussions on the costs of youth sports, securing facilities, and the involvement of coaches and parents. Introduced as personal opinions, not direct responses to the recent WHO announcement.
    https://www.reddit.com/r/CoachingYouthSports/comments/1wj09sk/whats_the_biggest_issue_in_youth_sports_the/