What does it mean to regulate body fluid and temperament?

Regulating body fluids and temperament means that cells produce certain chemical substances, and regulate physiological functions such as metabolism, growth, development and reproduction of the body through the transmission of body fluids. Mainly hormone regulation, the effect is generally slow, extensive and lasting.

There is feedback regulation between hormone and secretion system. Feedback regulation is that under the influence of cerebral cortex, hypothalamus can regulate and control the synthesis and secretion of some endocrine gland hormones through pituitary gland, and hormones can in turn regulate the synthesis and secretion of related hormones in hypothalamus and pituitary gland after entering the blood. Through feedback regulation, hormones in the blood are often maintained at a normal and relatively stable level.