Under natural and healthy conditions, the pH value of blood in our body is kept at around 7.4. According to the definition of pH value, it is weakly alkaline. Although it will change due to the continuous intake and production of acid and alkali substances in metabolism, our body can adjust the balance.

Getting angry is related to climate, environment, living conditions and health, and has little to do with acid-base system;

The manifestations of people with acidic constitution are:

1. Joint pain. When the human body is metabolized, it will produce some toxic acidic wastes. When it cannot be eliminated immediately, these wastes will accumulate in the body, and each joint is their favorite place. Accepting too much acid waste, people are prone to all kinds of rheumatism and gout, feeling numbness in joints and limbs, body aches or low back pain.

2. Skin problems. People with acidic constitution are prone to symptoms such as eczema, acne and hemorrhoids, which is related to their large intake of acidic food. When eating too much acidic food, the acidity of blood in human body will increase, the speed of blood circulation will slow down, and the skin will be dull. On the contrary, alkaline food can improve the state of blood circulation, prevent and treat skin inflammation and other skin diseases, and prevent premature skin roughness and aging.

3. Lack of energy. Normal acid-base ratio in human body is beneficial to the absorption and utilization of nutrients such as protein, and keeps the blood circulation and immune system in good condition, so people's energy is more abundant. The main reason that leads to bad temper and lack of concentration in study and work is that sugar, fat and protein in the body are decomposed in large quantities, and in the process of decomposition, acidic substances such as lactic acid and phosphoric acid are produced. These acidic substances stimulate human tissues and organs and make people feel mentally exhausted.

4. Stress. Urban people have to face different pressures from time to time. This information is transmitted to the pituitary gland through the diencephalon and then to various organs through the secretion of hormones. At this time, the calcium ion in the blood will decrease and the blood will become acidic. It can be seen that environmental pollution and incorrect living and eating habits have gradually turned our constitution into acidity.