Contented woman with long, wavy, brown hair being blown in face with fan - Maria Korneeva/Getty Images When it's sweltering hot outside, the last thing you want is to be sweating inside your home, too ...

Do you often come home and switch on both your air-conditioner and fan and slump on your bed to relax? Ever wondered if this is a practice that should be followed at all? Like everything, it has its ...