1 Is the skin biological clock the epitome of the regular changes of human functions? The metabolic activity of human body is constantly changing regularly, and the changes of nerve and body fluid regulation in different periods are also different. According to the changing law of human body function and skin function, its activities can be roughly divided into the following periods, and each period has certain metabolic characteristics.
1. 1 During sleep, the metabolic rate is at the lowest level from 22:00 p.m. to 6:00 a.m., especially during sleep, due to the excitement of vagus nerve, the respiratory heartbeat slows down, the blood flow rate slows down, the brain oxygen consumption decreases, and the secretion of adrenocortical hormone (hormone) decreases. However, the growth hormone secreted by pituitary gland increases greatly, which is the peak of cell metabolism, and the cell division rate is 7 ~ 8 times faster than other periods, at which time the cell growth and repair function is the most vigorous.
1.2 In the morning, the secretion of adrenocortical hormone increased from early morning and reached the peak at 6: 00 ~ 8: 00, while the secretion of growth hormone secreted by pituitary gland decreased obviously, and protein synthesis in human body was inhibited. At 8:00- 12:00 in the morning, the metabolism of human body is the most vigorous, and the function and vitality of skin gradually reach the peak, with strong stress ability and high work efficiency.
1.3 In the afternoon, the blood circulation is concentrated in the digestive system, and other human metabolism slows down accordingly, and the body gradually feels tired, and the blood flow of the skin also decreases, so the absorption capacity of nutrients in various skin care products is relatively weak.
After 1.4pm 15:00pm, due to the digestion of food, a large number of nutrients enter the blood circulation and are absorbed by the body, and the absorption capacity of the brain, heart and lungs gradually increases, reaching a peak. This period of time is more suitable for professional skin care, and can also be combined with fitness exercises such as aerobics.
1.5 at night 19:00-22:00, the resistance of the body and skin to external stimuli decreases, facial nerve endings and facial muscles begin to fatigue, and edema is easy to appear around the eyes and lower limbs. ? The different changes of skin function in different periods are the epitome of the overall functional changes of the human body. If skin disease occurs, the overall function will be affected, and the disharmony within the body will also be manifested on the skin. ? Therefore, the "skin biological clock" is the best and most important window to reflect and observe the changes of human function. In the treatment and skin care of skin diseases, we must have a holistic concept and treat both the symptoms and the root causes in order to achieve the ideal effect.
Using "skin biological clock" to guide skin beauty practice can get twice the result with half the effort? According to the change of skin biological clock, making full use of favorable time for various treatments and nursing, avoiding unfavorable time as much as possible or taking remedial measures can achieve better results than skin beauty without time. ? Here is divided into four different periods to explain.
2. 1 morning (8: 00 ~ 12: 00)? The function and vitality of the skin gradually reach the peak, and the ability to resist various external stimuli is improved and the resistance is strong. This period is suitable for the treatment and nursing of various capacitive dermatoses. Such as eyebrow tattoo and eyeliner, freckle removing, nevus removing, skin changing, dermatitis, acne, bromhidrosis, hair removal, wart removing, etc.
2.2 afternoon session (12: 00 ~ 15: 00)? After lunch, parasympathetic nerves are excited, blood pressure and adrenocortical hormone secretion decrease, the body gradually feels tired, blood circulation is concentrated in the digestive system, blood volume in the skin decreases and circulation slows down, and the absorption capacity of various nutrients weakens. Except for those "busy people" who can only take time to do skin care at this time, it is the best beauty measure if you have the conditions to have a good rest at this time.
2.3 Night time (19: 00 ~ 22: 00)? At this time, the skin immunity decreases, the resistance to external stimuli decreases, allergic reactions and blood pressure tend to decrease, skin blood circulation weakens, edema is easy to appear around the eyes and lower limbs, and facial nerve endings and facial muscles begin to fatigue. This time is suitable for facial cleaning care, which can be combined with facial and whole body health massage and steam bath.
2.4 Sleep period (22 ∶ 00 ~ 6 ∶ 00)? This period, especially from 22:00 to 2: 00 am, is the peak period of skin cell metabolism and the most vigorous period of hormone metabolism. Therefore, we should pay attention to the necessary rest and sleep to keep the skin in good condition. Applying some nutritious night cream with good air permeability is the best moisturizing for the skin.