Hot summer days and nights can sometimes feel tamed by being near an air-conditioner. However, cold air blowing directly on the head or back can cause stiffness and headaches, and over time, even increase susceptibility to fatigue and premature aging.
Sleeping in an air-conditioned room can be even more harmful to the body. So, how do we direct an air-conditioned breeze to prevent sickness, while still deriving some respite from intense heat?
