What are the contents of the science tabloids in the third grade of primary school?

Five secrets of drinking milk scientifically

Drinking milk is good for health, but many people still have some conceptual misunderstandings about drinking milk. This article introduces some common sense of drinking milk scientifically.

1. It is not advisable to drink milk on an empty stomach in the morning. Because the gastrointestinal peristalsis is fast when the human body is emptying, the nutrients in milk often rush into the large intestine before being absorbed. In addition, the method of gulping milk is not enough, because it will reduce the chance of mixing with saliva in the mouth and is not conducive to digestion and absorption. You'd better eat some biscuits, cakes, etc. Before drinking milk, or eating snacks while drinking milk.

It is more beneficial to drink milk at night. Scientific research has found that there is a special law of calcium metabolism in the human body: at night, especially at midnight, the plasma calcium content will appear a "trough", forcing the human body to transport some calcium in bones to supplement it through the regulation mechanism. Although this temporarily maintains the calcium in the blood, the calcium in the bones is reduced. Milk is rich in calcium, and drinking a glass of milk before going to bed can compensate the body's demand for calcium at night.

Milk should not be cooked with sugar. Milk is rich in amino acids. At high temperature, lysine in milk reacts with sugar to produce a new compound-fructosyl amino acid. This substance can't be digested and absorbed by human body, but it affects human health. It is best to drink fresh milk. If it is too cold, you can heat it a little.

If you don't like milk, you can drink yogurt. Most people who dislike milk suffer from lactose intolerance. These people can try to drink yogurt. The lactose content in yogurt is greatly reduced, but almost all the nutrients in milk are retained. Among them, lactic acid bacteria can survive and reproduce in human body, which is beneficial to the absorption and utilization of nutrients and improves immunity. Yogurt contains no antibiotics, is easy to digest and absorb, and can be drunk on an empty stomach.

5. Yogurt can't be heated for drinking. Drinking yogurt is mainly about eating its nutrients and living bacteria. For example, when yogurt is heated, people can only drink nutrients but lose bioactive lactic acid bacteria, so don't drink it after heating.