Sounds according to the baritone, promoting rapid awakening

Rapid awakening is possible, if this sounds to the music baritone sounds, say Australian researchers. Scientists conducted a study that examined the effects of sound waves of different height on the rate of awakening people. It was lost for about nine different sound signals during the early, the deepest stage of sleep. According to experts, the sound sleep in humans during the first three hours of sleep. Full and sleep longer necessary for women than men, experts say. Since in the case of a periodic lack of sleep in women can depressed, a plurality of, and even psychological cardiovascular diseases. Also, as we wake up, play a role, experts say. It was found that the most effective sound adults a sound pulse at a frequency of 520 wake Hz, which corresponds to the music baritone. But the shrill sound of pure higher frequencies were less effective. So if you wake up and fast, do not want to fight with sleep, use sound pulses corresponding to the baritone, the scientists suggest.