It’s a grey day, with scattered drizzle outside the window, so I fall asleep in bed in no time. Why is it that it seems easier to fall asleep on a rainy day? Scientists give a scientific explanation for this.
When it rains, the moisture in the air increases and makes you feel good. It is because of the increase of negative ions in the air, rainwater and air friction will produce a large number of negative ions. Negative ions for the human body’s nerve, cardiovascular respiratory system has a good role in promoting, and has a sedative and hypnotic effect on the human body, negative ion air purifier is therefore from.
The sound of pattering rain will not make people feel bored, but will make them feel more calm. The sound of rain into the mind, will produce a kind of alpha wave, close to the state of the human body during sleep, so will feel sleepy. In addition the sound of rain is very regular and produces a sound of 10 to 20 hertz, scientifically named white noise, which has a calming effect on sleep. When there are too many water molecules in the air, low pressure is created, and the oxygen content in this environment is low, so the lack of oxygen to the brain can cause a feeling of drowsiness.
And in darker weather conditions, the brain’s pineal gland accelerates the production of melatonin. The brain inhibits melatonin secretion during the day and accelerates it at night, and melatonin helps you sleep. So when it rains and the sun is blocked by dark clouds, the brain secretes it as well. Therefore, we feel sleepy and want to sleep on rainy days.
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