Its harm to the body is mainly manifested in the following aspects:

First, the damage to the brain. Although the weight of brain tissue only accounts for 2-3% of human body weight, the blood flow of the brain is about 800 ml per minute, the oxygen consumption is about 45 ml per minute, and the sugar consumption is about 5 grams per hour. Teenagers' brain tissue is in the development stage, and their demand for blood, oxygen and glucose is higher than that of adults. If the blood sugar is too low, there will be obstacles in the conscious activity of the brain, which will inevitably affect the weight and morphological development of the brain in the long run.

Second, the harm to the digestive system. Under normal circumstances, the food eaten the night before is emptied from the stomach into the intestine after about six hours. If you don't eat breakfast the next day, the stomach acid and various digestive enzymes will "digest" the gastric mucosa. In the long run, the normal function of cells secreting mucus will be destroyed, which will easily cause digestive system diseases such as gastric ulcer and duodenal ulcer.

Third, it causes arteriosclerosis, which is more likely to lead to obesity. Many young students are afraid of gaining weight and skip breakfast. There is no scientific basis for this practice. The human body's demand for heat is standard. If you don't eat breakfast, you will definitely increase your appetite for lunch and dinner. However, the amount of exercise after dinner is generally small, which is more likely to cause fat accumulation and lead to obesity. In addition, not eating breakfast for a long time will also cause cholesterol and lipoprotein to deposit on the inner wall of blood vessels, leading to arteriosclerosis.

At present, young students' studies are very heavy, and their classes are full every morning, which makes their brains and bodies in a state of high tension. Because skipping breakfast for a long time or unreasonable nutrition will do great harm to the health of teenagers. I hope you and your classmates can take breakfast seriously instead of perfunctory, and hope your family can cooperate with you to grow up healthily.

1, slow you down: breakfast is the energy source of brain activity. If you don't eat breakfast, your body can't supply enough blood sugar for consumption, and you will feel tired, weak, inattentive, depressed and unresponsive.

2. Chronic diseases may "rise": skip breakfast and start a day's work with an empty stomach. In order to gain power, the body will use thyroid gland, parathyroid gland, pituitary gland and other glands to burn tissues, which will not only cause hyperthyroidism, but also make the body sour and suffer from chronic diseases.

3, the stomach may be "rebellious": eating breakfast at noon, the stomach is hungry for a long time, which will cause excessive gastric acid secretion, which is easy to cause gastritis and gastric ulcer.

4, constipation "out of the cage": in the case of regular meals, the phenomenon of gastrocolon reflex will naturally appear in the human body, simply speaking, it is to promote defecation; If you don't eat breakfast as a habit, it may cause gastrocolonic reflex disorder for a long time, which may cause constipation.

5. It will bring you closer to obese people: Once the human body realizes the lack of nutrition, it consumes carbohydrates and protein first, and then fat, so don't think that skipping breakfast will promote the consumption of fat. On the contrary, skipping breakfast will make you eat more for lunch and dinner. Instead of losing weight, you will get fat.

Friendly reminder: don't think that you can lose weight without eating breakfast and absorbing less calories. According to nutritionists, breakfast is the most difficult meal for everyone to turn into fat in a day. Don't eat breakfast every day, just eat more lunch. Japanese sumo wrestlers only eat lunch and dinner instead of breakfast, so breakfast is very important. The ratio of breakfast, lunch and dinner is preferably 3: 2: 1, so that the essence you eat in a day can be consumed at the most vigorous time.

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According to nutrition experts, breakfast is the most important meal of the day. After resting from sleep, the body is fully prepared for a day's work and study. At this time, you really need to take in rich nutrition to cope with the consumption of the whole day. What harm does skipping breakfast bring?

First, skipping breakfast will cause hypoglycemia and make people depressed. After a night's sleep, the nutrients in the human body have been exhausted. At this time, the blood sugar concentration is in a low state. If you don't eat breakfast, the blood sugar concentration will continue to drop, leading to pallor, weakness of limbs, listlessness, and sometimes even hypoglycemia shock.

Second, it will seriously affect memory. According to experts, the energy of the brain comes from glucose, which can only be accumulated in the liver and kidneys and can only be stored for 8 hours. If you don't eat in the morning, your brain is short of energy, resulting in memory loss.

Third, it is easy to get chronic diseases such as gastritis and ulcer if you don't eat breakfast.

Fourth, induce gallstones. When people are on an empty stomach in the morning, the saturation of cholesterol in bile in the body is high, so eating breakfast is beneficial to the discharge of bile in the gallbladder; On the contrary, it is easy to precipitate cholesterol in bile and produce stones. A survey of women with gallstones by British scholars found that people with gallstones are related to not eating breakfast for a long time.

Therefore, we should not only eat breakfast, but also attach great importance to the quality of breakfast. Some people think that "breakfast is gold, lunch is silver and dinner is copper". Eating breakfast every day is one of the elements to prolong life.

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There are many disadvantages to skipping breakfast often.

Often skipping breakfast will bring a lot of harm to human body.

(a), do not eat breakfast prone to digestive tract diseases. After a night's sleep, the food in the intestines has been digested in the morning and needs to be supplemented urgently. If you don't eat breakfast well, today's lunch will inevitably increase greatly, resulting in excessive burden on the gastrointestinal tract, leading to gastric ulcer, gastritis, indigestion and other diseases.

(2) skipping breakfast will reduce brain function and affect brain development. When you are hungry, your blood sugar will drop, which will cause brain disorder, dizziness, inattention, memory loss, fatigue, and even affect your brain function, leading to mental decline.

(3) Skipping breakfast leads to high cholesterol. People who skip breakfast have 33% higher cholesterol than those who eat breakfast. All children with high cholesterol have fat lines in their blood vessels, which is an early sign of atherosclerosis.

(4) It is easy to suffer from gallstones if you don't eat breakfast for a long time. When people are on an empty stomach, the cholesterol concentration in bile is particularly high. In the case of normal breakfast, the gallbladder contracts and cholesterol is excreted with bile. If you don't eat breakfast, your gallbladder won't contract, and it is easy to get gallstones after a long time.