title: Secondary schools design a do-it-yourself happiness game.
mesh_terms: D000293:Adolescent; D002648:Child; D005260:Female; D005717:Games, Experimental; D006240:Happiness; D006293:Health Promotion / Q000458:organization & administration*; D006801:Humans; D008297:Male; D011634:Public Health; D012572:School Health Services / Q000458:organization & administration*; D006113:United Kingdom