Rainy days do have a certain impact on people's emotions, but the relationship between weather and emotions is not that simple. Let’s talk about the physiological reasons first. From a physiological point of view, the pineal gland in the human body secretes less pineal hormones under strong sunlight, while the concentrations of thyroxine and adrenaline are higher; in rainy and bad weather, the opposite is true. Thyroxine and epinephrine can promote nerve excitation and cell metabolism, and stimulate tissue growth, maturity and differentiation. Therefore, sunny and good weather often makes people energetic, while rainy days make people listless and unhappy. But this is not absolute, because our conscious activities and emotions are not only limited by physiological conditions, but are also affected by culture. If you think of some unpleasant things on a rainy day, you will be depressed and sad. If every time it rains you are associated with a previous unpleasant experience on a rainy day, then the effect is not caused by the rain itself.
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