I am a firm believer in turning on the air-conditioner in one's bedroom not only in the Philippine summer but also in the cold and in the rainy seasons. When it is 21 degrees or lower outside, set the air-conditioning to 23. It prevents you from getting sick due to unconstant and uncontrollable cold air. That is why I am dismayed when I walk into a hotel in a cold city and see that there is no air-conditioning and that the room's windows are merely open--and that, when I ask why there isn't any air-conditioning, the manager looks at me as though I were crazy and replies, "Because it's cold."

Air-conditioning is not meant to make a room cold. It is meant to regulate the temperature in your immediate environment.