Rain falls sounds

rain sounds offline is a free application that give calmness and relaxations/

Why do people fall asleep more quickly when it rains?

Increased negative ion content in the air

The negative ion content in the air increases when it rains. lightning and the friction between rain and air can produce a large amount of negative ions in a rainy day.

The increase of negative ions can significantly improve the human nervous system, cardiovascular system, blood system, and respiratory system. People will feel more comfortable. What’s more, the negative ions have the effect of calming and hypnosis. It is one factor which help people fall asleep easily.

Rain sounds are lullaby

Rain sounds is a rhythmic ticking sound, which sounds like a wonderful lullaby that can help people fall asleep quickly.

Studies have found that when rain sounds enters people’s brain, brain unconsciously relaxes and produces alpha waves, which are very close to the state of brain when human sleeps.

Rain sound is generally between 0 and 20 kHz. It is not upsetting. On the contrary, this sound makes people comfortable. However, if there is a sudden sound of thunder in the middle of rain sounds, it will make people stressful. At the same time, the level of cortisol in people’s body will be high.