After strenuous exercise, people will feel sore, tired and thirsty in their waist, legs or whole body muscles. At this time, if you don't eat properly, muscle soreness and fatigue will increase. The reason is that the acid-base balance in the body can not be maintained normally, but the body fluids on the body are acidic and the fatigue symptoms are aggravated.

Ordinary food can be divided into acidic food and alkaline food. Judging the acidity and alkalinity of food is not based on human taste, nor on the chemical properties of food in water, but on the acidity and alkalinity of the final metabolites produced after food enters the human body. Protein, fat and sugar foods, which contain nonmetallic elements such as nitrogen and phosphorus, are acidic foods; Vegetables, fruits, bean products, etc. It contains many metal elements such as sodium, potassium, calcium and magnesium, and belongs to alkaline food. These foods are metabolized in the body to produce alkaline substances, which can prevent the blood from becoming acidic. Although fruit is sour, it is an alkaline food; Fish, meat, eggs, sugar, etc. are not sour, but they are acidic foods.

Normal body fluids are weakly alkaline. After physical exercise, people will feel sore muscles and joints and mental fatigue. The main reason is that a large number of sugar, fat and protein in the body are decomposed, and acid substances such as lactic acid and phosphoric acid are produced in the process of decomposition. These acidic substances stimulate human tissues and organs, making people feel muscle and joint pain and mental fatigue. At this time, you should eat more alkaline foods such as milk, bean products, vegetables and fruits to neutralize the acidic components in the body and relieve fatigue.