title: How to choose a health club. As fitness centers sweat to attract you, stay cool and careful.
mesh_terms: D002568:Certification / Q000592:standards*; D004522:Educational Status; D020446:Fitness Centers / Q000592:standards* / Q000639:trends; D006801:Humans; D008875:Middle Aged; D010806:Physical Education and Training / Q000592:standards*