Children spend now inside the increasing number of hours in Web surfing, TV or play video games can, a resurgence of rickets, linked are, according to a new study published in the current issue of the British medical journal.
Rickets caused by chronic deficiencies of vitamin D, which one at a time can result in long periods of time without the light of the Sun or inadequate performance.
Children suffer, painful and distorted bow legs can develop bones turn that grow not properly.
Researchers explained that the condition is "confusing common' in British children.
The research, the British, probably children applies to children in all the other industrialized countries, scientists said.
"Children tend to stay within more these days and playing on their computers do not enjoy the fresh air,", said Professor Simon Pearce, University of Newcastle in England, lead author of the study.
"This means that their levels of vitamin D is worse than in previous years."
Also increase in obesity is associated with excessive time spent in the House to a computer or TV.
Professor Pearce and his colleague Tim Cheetham, milk and other foods with vitamin D supplements.
It is not only the children who suffer from vitamin D deficiency. In fact, half of all adults in the UK, especially in the northern part of the country, in the spring of vitamin D, and in winter are not sufficient in a few months, with about 20% with severe deficiency.
The lack of sufficient vitamin D is also with heart disease, the type 2 diabetes, cancer and prerequisite for the soft-os called Osteomalacia associated.
Rickets can be easily through exposure in the Sun and a healthy diet with foods that prevent rich in vitamin D, including oily fish such as herring, salmon, mackerel and sardines. Milk supplements provide a reliable supply of vitamin D.
"Fifty years said many children would have received regular doses of cod liver oil, but this practice has practically vanished, Cheetham.".
The study's authors called for new laws that would recommend the addition of vitamin D, milk and other foods.