Keep heating up, it will rain on Sunday! We should have known the weather would be cool next week.

The spring sun is just right,Might as well exercise more!

Lack of exercise,Can lead to endocrine disorders.endorphinDecreased secretion (with analgesic and relaxing effects),Cortisol(related to anxiety) increased secretion.Sedentary causes poor blood circulation.In turn, the brain is deprived of oxygen, which damages brain function and causes muscle soreness and stiffness in the neck, shoulders and waist.Lack of outdoor light,SerotoninThe level of neurotransmitter (responsible for regulating emotions) decreases, which induces depression and anxiety; daymelatoninSecretion can not be effectively inhibited, making people feel sleepy, while melatonin secretion is insufficient at night, which can not induce sleep normally.