What are health reasons why children should stay inside?

Few: We encourage children to get outdoors as often as possible. If there is a medical condition, like severe asthma, then pay attention to smog alerts. If they are on medications that may alter their ability to handle heat may be another concern but the majority of children DON'T spend enough time outside! On pretty days - leave the electronics behind and get a picnic going! http://www.wikihow.com/Keep-Your-Child-Healthy