When the sky is overcast, one cup of coffee is sometimes not enough. Thoughts revolve around the pillow, and focusing on a business meeting is extremely difficult.
There are several reasons for this. The first is a lack of oxygen in the blood. When atmospheric pressure drops, our body lowers blood pressure and reduces heart rate. The concentration of oxygen in the blood decreases, which affects the activity of the nerve tissue in the brain — it also decreases. As a result, drowsiness occurs.
The second reason is related to the level of melatonin, the "sleep hormone." The appearance of sunlight blocks the production of melatonin in the body, while a cloudy sky disrupts the biological clock — the body simply does not understand why it is being forced to stay awake when it is dark outside.
Rain is soothing due to its rhythm, and after the rain, drowsiness appears because of the increased formation of ozone in the air.
Rain itself has a sedative effect. The falling drops create a uniform sound, which is also called white noise. In addition to the sound of rain, this includes the rustling of leaves, wind, the roar of a waterfall, and other monotonous sounds. They allow you to relax and fall asleep faster.
Drowsiness after rain occurs due to the increased formation of ozone in the air. Additionally, the smell of earth plays a role. All grasses, plants, and trees contain volatile aromatic substances. Rain washes them out, mixing them with geosmin, an organic compound produced by bacteria, which is responsible for the earthy smell. Thus, a special aroma with a relaxing effect is created.
However, some plant aromas, on the contrary, induce a surge of energy. These include the scents of lemon, rosemary, lavender, jasmine, and pine. Try placing essential oil from one of these plants in your room — sleep will come easily!
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