The principle of milk to help sleep:
Milk contains two hypnotic substances: one is tryptophan, which can promote brain nerve cells to secrete the neurotransmitter serotonin, which makes people sleepy; The other is peptides that can regulate physiological functions. Among them, "opioid peptides" can combine with the central nervous system to play an anesthetic and analgesic role similar to opium, which makes people feel comfortable all over and is conducive to relieving fatigue and falling asleep.
Milk milked at night contains more tryptophan and melatonin. These chemicals can help people reduce anxiety and promote sleep. Milk is rich in calcium. A glass of milk before going to bed can promote health and sleep.
Extended data
People who should not drink milk to help them sleep:
1, kidney calculi patients
The most dangerous factor of stone formation is the sudden increase of calcium concentration in urine for a short time. After drinking milk for 2-3 hours before going to bed, it is the peak of calcium excretion in milk through the kidneys. At this time, it is in a sleep state, urine is concentrated, and calcium passes through the kidneys more, which is prone to stones.
2. People who lack lactase in the body
The content of lactose in milk is very high, and lactose cannot be directly absorbed by human body. It must be hydrolyzed into galactose and glucose under the action of lactase in digestive tract to be absorbed. If lactase is lacking, lactose cannot be absorbed.
3. People suffering from certain digestive tract diseases
Milk can promote gastric acid secretion more than ordinary food, thus aggravating and inducing digestive tract diseases. Therefore, people suffering from digestive tract diseases such as gastric and duodenal ulcer, ulcerative colitis and cholecystitis had better not drink milk.
4, abdominal surgery
This kind of person will have flatulence when drinking milk, which is not conducive to postoperative rehabilitation.
People's Network-Milk has the effect of helping sleep 10 People should not drink milk before going to bed.
People's Network Research: Milk produced by cows at night is more conducive to sleep.