Loneliness is an increasingly detrimental issue that strikes the most vulnerable groups in society the hardest, with children and seniors being especially susceptible. Yet, it spares no one. 45% of British people report sometimes feeling lonely, and as many as 18% feel lonely all the time. Loneliness is not only an issue of scale; it has also been labelled as being worse for us than obesity and physical inactivity, having negative effects on both mental and physical health. So what do school communities need to know to help tackle this issue?