Children and adolescents in South Korea are the most lazy in the world, according to a global study.

The study, published in the British Daily Mail today, said that the levels of physical activity needed by children in each country have collapsed, with only one in five children aged 11 to 17 getting the same exercise they need. Mechanism to keep them healthy.

In some countries, such as South Korea, the Philippines, Cambodia and Sudan, more than 90% of adolescents are inactive.

The study said that 79.9% of adolescents in the UK "are engaged in insufficient physical activity."

At the same time, the United States outperformed almost all countries in the world with only 72% of inactive children, followed only by Bangladesh, Slovakia and Ireland.

Experts said the statistics were "worrying" and that exercise was vital to address the most serious health concerns of the child, obesity.

South Korea, the Philippines and Cambodia have the highest proportion of children who were not physically active and exercising less than an hour of exercise a day, according to a WHO study.

South Korea, the Philippines and Cambodia have the highest proportion of children who were not physically active and exercising less than an hour of exercise a day, according to a WHO study.

Professor Russell Wiener, president of the Royal College of Pediatrics and Child Health, said: "More active children enjoy better health and well-being and generally improve in school."

The World Health Organization also revealed that girls are less active than boys in all but four of the 146 countries - Tonga, Samoa, Afghanistan and Zambia.

In the UK, one in three children is overweight before they complete primary school, and even less (18 percent) eat five or more portions of fruit and vegetables a day.

According to the Centers for Disease Control and Prevention, childhood obesity in the United States is 18.5% and affects about 13.7 million young people.

According to the study, the highest proportions of children who engage in less physical activity are:
South Korea (94.2% of children are active for less than one hour a day)
Philippines (93.4%)
Cambodia (91.6%)
Sudan (90.3%)
East Timor (89.4%)
Zambia (89.3%)
Australia (89%)
Venezuela (88.8%)
New Zealand (88.7%)
Italy (88.6%)

Proportion of children who engage in more physical activity:

Bangladesh (66.1% of children are active for less than one hour a day)
Slovakia (71.5%)
Ireland (71.8%)
United States (72%)
Bulgaria (73.3%)
Albania (73.9%)
India (73.9%)
Greenland (73.9%)
Finland (75.4%)
Republic of Moldova (75.7%)