It's when the lights go out and you feel something behind you, you hear it, you feel
its breath against your ear, but when you turn around, there's nothing there...»
Also, in order to reap the benefits of wearing a weightlifting belt, you have to breathe properly during heavy lifts — for example, when squatting, take a deep
breath just before you descend and hold it until you reach the lowest point of the squat, then perform what is known as the Valsava maneuver (the technique you would use when trying to clear your
ears with the help of exhaling) or forcefully exhaling
against a closed airway.