First, when you can smile, the blood circulation of facial muscles and skin is accelerated. Adequate blood circulation can accelerate the reduction of harmful toxins in the blood, and sugar, fat and lactic acid in the human body can also be decomposed faster; At the same time, nutrients are delivered to the peripheral skin through smooth blood circulation, so that the deposited waste is discharged, the skin quality is improved, the skin elasticity is enhanced, the face is radiant, the eyes are bright and the expression is moving. Smiling will bring some false wrinkles to the face, but it will not bring real wrinkles. As long as the skin is nutritious, it will disappear within a week, so there is a saying that "laughter is a beauty agent"
Second, enhance the body's immunity William Frye of Stanford University in the United States found that laughter can increase the number of antibodies and immune cells in blood and saliva, excite parasympathetic nerves, reduce adrenaline levels and relieve fatigue. Researchers at Linda University in Rome found that smiling can reduce the level of stress hormones such as cortisol, which can not only lower blood pressure, but also reduce the damage of neurons in hippocampus (responsible for memory) and enhance memory.
3. Smile is infectious. How many smiles can reduce the brightness of a room? Although this is indeed a beautiful emotion, there is a trace of truth. Smiling can not only enhance emotions, but also change others' emotions and make things happier. The part of the brain responsible for controlling smiling expressions is the unconscious automatic response area. This means that smiles may be completely unconscious, especially when we are used to imitating others' smiles. Yes, science has proved that a smile is contagious!
4. Smiling can relieve stress. When we are stressed, a sad face will climb on our face. Smiling makes us look less tired, tired and tired. When you feel stressed, you can take time out to pretend to smile. In this way, your stress may be reduced and your life will be more hopeful.