How water sounds can help you sleep better EXPLAINED!

The brain's 'threat activated vigilance system,' Live Science explains, wakes a person up when these noises are detected. The calming water sounds of a sleep-track work on this idea, gradually varying in volume to prevent the noise from startling a person awake. 'These slow, whooshing noises are the sounds of non-threats, which is why they work to calm people,' Buxton, told Live Science. 'It's like they're saying: 'Don't worry, don't worry, don't worry.' 'The type of noise defines if you will wake up or not, controlling for the volume, because the noise information is processed by our brain differently,' Buxton told Live Science. These calming sounds can also block out noises that the brain would interpret as threats.