After the rain, it will clear up! Feel suddenly enlightened! Why is this?

This is the research content in environmental psychology. The reason why rainy weather affects people's mental health is mainly because the light in rainy weather is weak and the human body secretes more pineal hormones. In this way, the secretion concentration of thyroxine and adrenaline is relatively reduced, and human nerve cells are therefore "lazy" and become less "active", and people will become listless.