What are the contents of the health education knowledge lecture?

The purpose of holding health education lectures is to let people know something about health. What is the content? The following are the health education lectures I have carefully arranged for you, hoping to help you!

Health education knowledge lecture 1

First, the teaching purpose

Let residents know the concept of health and what a healthy person is through explanation. Factors affecting health, healthy lifestyle and the concept of health education.

Second, the teaching focus and difficulties

1, the concept of health

2. A healthy lifestyle

3. Factors affecting health

4. Health promotion

Third, the teaching process

Introduction: Health is the normal state of human life and the guarantee of economic development, social progress and national prosperity. China's constitution clearly stipulates that maintaining the health of all citizens and improving the health level of people of all ethnic groups is one of the important tasks of socialist construction. Helping people get health is the duty of every health worker and the sacred mission of every health educator.

What is health?

Because people live in different times, environments and conditions, they have different understandings of health. In the past, people generally thought that the body was not sick, injured or disabled? Healthy? . With the change of human disease spectrum and medical model, people's understanding of health is deepening. Modern people realize that besides biological factors, psychological and social factors, as well as bad living habits, lifestyles and behaviors are important causes of many diseases and deaths. Do it alone when you are concerned about people's health? Biological man? From a new point of view, this problem is obviously not comprehensive enough, and the influence of social and psychological factors on people's health must be considered. With the deepening of this understanding, the past? Biomedical model? Convert into? Biology? Psychology? Society? Medical model.

The world health organization (who) 1948 put forward in its constitution that health is not only the absence of disease or weakness, but also a perfect state of physical and mental health and social happiness? . That is to say, people's health is not only the absence of diseases physically, but also a state of psychological and spiritual balance, including good adaptation between people and society to achieve harmony with society. People not only have a body, but also a spirit; People are not only natural and biological people, but also social people. This new concept of health is a comprehensive definition of health, which combines human body with spirit and individual with society.

A completely healthy person should not only have his own health objectively, but also know basic health knowledge, have the belief and consciousness of pursuing health, have a healthy lifestyle, and bear health responsibilities to others and society at the same time.

There is also a state between health and disease, which we call sub-health. Most of them have no clinical symptoms and signs, or have symptoms without evidence of clinical examination, but they have information about potential onset tendency, and are in a state of low quality and psychological imbalance with the deterioration of physical structure and physiological function.

(2) Factors affecting health

Human health is affected by many factors. In addition to internal factors such as heredity, psychology and behavior (lifestyle), external factors such as biological environment, social environment and natural environment are closely related to human health.

Social environment: Social environment factors, including political system, social stability (war or peace), economic situation, medical and health services, food and drinking water supply, community services, interpersonal relationships, cultural customs and so on, are closely related to health.

Natural environment: including climatic conditions, geographical conditions, water quality and soil conditions (including minerals), magnetic fields and rays, etc. These are also directly related to the survival and health of mankind. For example, in some areas, more or less trace elements in soil and water can cause endemic diseases, such as fluorosis, iodine deficiency, Kaschin-Beck disease and Keshan disease.

Biological environment: mainly refers to the biological state in the environment where people live, especially the concentration, activity and pathogenicity of organisms that cause and spread diseases. Microorganisms such as viruses and bacteria, insect vectors such as mosquitoes, flies and cockroaches, and animals such as mice. When the concentration of these organisms in the living environment is high or the pathogenicity is strong, it will inevitably pose a threat to human health.

Genetic factors: people's physical characteristics will be passed on to future generations, and some diseases are also inherited, such as hemophilia, albinism and diabetes.

Psychological factors: can directly or indirectly affect health, such as long-term psychological tension can lead to high blood pressure, sudden emotional excitement can lead to cardiovascular and cerebrovascular diseases.

Behavioral (lifestyle) factors: an unhealthy lifestyle will also directly or indirectly endanger health. For example, long-term heavy smoking can lead to bronchitis, hypertension and other diseases, and even increase the risk of cancer such as lung cancer. Excessive drinking for a long time may damage the liver and cause other digestive system diseases. A diet high in fat and cholesterol can lead to arteriosclerosis and coronary heart disease. A high-sugar diet and lack of exercise may lead to diabetes.

Scientific research shows that among the above factors affecting health, 45% of human diseases are related to lifestyle and 60% of death factors are related to lifestyle. In the United States, unhealthy lifestyles account for 48.9% of all deaths, and in China, they account for 37.3%. This shows that people's behavior factors have a great influence on their own health.

A person's lifestyle is influenced by his family in the early days, such as eating habits, hygiene habits (such as brushing teeth) and living habits. But with the growth of age, they will gradually adjust their behavior under the influence of the surrounding environment, and will form relatively fixed behavior habits when they enter youth and adulthood. For example, whether to pay attention to hygiene, whether to like sports, whether to like to communicate with people, whether to smoke and drink, and so on. These behavior habits, that is, lifestyle, will have a long-term impact on their health.

1992 the world health organization puts forward a healthy lifestyle in view of the main harmful factors, bad behaviors and lifestyles that affect modern people's health. Four cornerstones? Reasonable diet, moderate exercise, smoking cessation and alcohol restriction, psychological balance. If this can be done, the life expectancy of the global population can be extended by 10 years.

1, reasonable diet. That is to say, nutrition should be comprehensive and balanced. It is advisable to eat eight full meals, take flour, rice and miscellaneous grains as the staple food, reduce the intake of animal fat and sweets, eat more fresh vegetables, fruits, bean products and milk, and limit the amount of salt. The salt intake per person per day should not exceed 6 grams.

2, moderate exercise. Exercise lies in persistence and moderation. The project should vary from person to person, and you can do light and moderate exercise five times a week for about half an hour each time. Young and middle-aged people can play ball and run long distances. Middle-aged and elderly people can walk fast, jog and ride bicycles. Moderate exercise is an important factor to prevent and eliminate fatigue and ensure health and longevity.

3. Quit smoking and limit alcohol. Smoking and drinking are the enemies of health. Smoking is an important risk factor for hypertension, coronary heart disease, lung cancer, bronchitis, emphysema and other diseases. People of any age can get real health benefits by quitting smoking. According to scientists' experiments for many years, a series of beneficial changes will take place in the internal organs of smokers after quitting smoking: within 20 minutes, blood pressure will drop to the standard level; Pulse drops to standard speed; The temperature of hands and feet rose to standard body temperature.

Within 8 hours: the content of carbon monoxide in blood drops to normal level; The oxygen content in the blood increased to normal level. Within 24 hours: the risk of myocardial infarction is reduced. Within 48 hours: the function of nerve endings gradually began to recover; Smell and taste are more sensitive to foreign substances. Within 72 hours: no more bronchospasm, greatly relaxed breathing and increased vital capacity. 2 weeks to one month: stable blood circulation; Steady and light; Lung function improved by 30%. 1 to 9 months: symptoms such as cough, sinus congestion, fatigue and shortness of breath are relieved; New cilia appear on trachea and bronchial mucosa, and the function of handling mucus is enhanced; Less sputum, cleaner lungs and less chance of infection; Improve the body's energy reserve; The weight can be increased by 2 _ 3kg. 1 year: the risk of coronary atherosclerosis is reduced to half of that of smokers.

4. Psychological balance. Psychological balance is the most important. To maintain psychological balance, we should do the following: three pleasures: helping others, being contented and enjoying ourselves. Three Righteousness: Treat yourself correctly, treat others correctly and treat society correctly. Three musts: not only to contribute to society, but also to enjoy a better life, to have enterprising spirit in career and a normal heart in life; We should not only strive for perfection in our own work, but also have a colorful amateur life.

(C), the concept of health education

Since the early 1980s, health education has been formally introduced to China, and it has been familiar to many people. Health education is an activity and its process with the means of communication, education and intervention, aiming at helping individuals and groups to change unhealthy behaviors and establish healthy behaviors, and aiming at promoting health.

Health education is based on preventing and controlling diseases and promoting health. Through planned, organized and systematic educational activities, people are encouraged to voluntarily take behaviors beneficial to human health, eliminate or reduce risk factors, reduce morbidity, disability and mortality, improve life and quality of life, and evaluate the educational effect. The core of health education is to change people's behavior and lifestyle and the environmental conditions that affect the change of behavior and lifestyle. Health education is a planned, purposeful and evaluated educational activity, not just radio and television, posters and slogans. It emphasizes the mutual cooperation between health educators and educated people, and achieves the goal of health through their joint efforts.

It is the unity of changing the knowledge, concept and behavior of the educational object. The relationship between them is: knowledge is the foundation, belief is the driving force, and action is the goal. Its purpose is to eliminate or reduce the risk factors affecting health, prevent diseases, promote health and improve the quality of life.

Lecture on health education II

Cerebral infarction is a kind of cerebrovascular disease, which is caused by cerebral atherosclerosis and vascular intima injury, and then local thrombosis is formed due to various factors, which aggravates or completely occludes arterial stenosis, leading to ischemia, hypoxia, brain tissue necrosis and neurological dysfunction.

The main factors of cerebral infarction are hypertension, coronary heart disease, diabetes, overweight, hyperlipidemia and eating fat. Many patients have family history. It is more common in middle-aged and elderly people aged 45 ~ 70.

Patients with cerebral infarction generally go through three stages: acute attack, recovery and sequelae. The comprehensive prevention and treatment of most patients in recovery period and sequelae period is carried out at home. If we can insist on effective rehabilitation training such as drug therapy, diet regulation and limb function, and control the risk factors such as blood pressure and blood lipid, we can achieve the goal of effective improvement of symptoms and non-recurrence.

Effective rehabilitation care for patients with cerebral infarction should include the following points:

Diet: Eating more fiber-rich foods, such as vegetables, fruits, brown rice, whole grains, beans, etc., is helpful for defecation, preventing constipation, stabilizing blood sugar and lowering blood cholesterol.

Vegetable oil is selected and cooked by boiling, steaming, cold salad, burning, roasting, marinating and stewing. Fasting fatty meat, viscera, fish eggs, cream and other foods with high cholesterol; You can choose fish with less fat and skinless chicken. Can I eat 1 whole egg every week? Two. Milk and its products, grains and roots, meat, fish, beans and eggs, vegetables, fruits and oils should be ingested through various channels to fully obtain various nutrients.

Exercise: Appropriate physical exercise and physical activity should be carried out, strenuous exercise is not suitable, running and mountain climbing are not desirable, and aerobic exercise such as walking, aerobics and playing Tai Ji Chuan can be carried out. However, it should be chosen according to the individual's physical condition, and it should not be overdone to avoid excessive fatigue. Proper physical exercise can increase fat consumption, reduce cholesterol deposition in the body, improve insulin sensitivity, help prevent obesity, control weight, increase circulatory function, regulate blood lipid, lower blood pressure and reduce thrombosis. It is an active measure to prevent and treat cerebral infarction, cerebral embolism and cerebral infarction.

Drug treatment: The pathological basis of cerebral infarction is cerebral atherosclerosis. After the thrombus subsides, the cerebral atherosclerosis does not subside, and the cerebral infarction may still form again without interruption. Thrombolytic, stasis-removing, lipid-lowering and anticoagulation? Effective drugs for treating cerebral infarction.

Chinese medicine:

Traditional Chinese medicine has definite clinical efficacy in preventing cardiovascular and cerebrovascular diseases, including traditional Chinese medicine with the characteristics of promoting blood circulation, removing blood stasis and awakening consciousness. They have the functions of lowering blood pressure, reducing blood viscosity, improving microcirculation, resisting oxidation, resisting thrombosis and removing blood stasis, and are suitable for the treatment of patients with cerebral infarction to recover symptoms and prevent recurrence.

Aspirin: mainly prevents platelet aggregation and release, improves the balance between prostaglandin and thromboxane A2, and prevents thrombosis. The disadvantage is that 47% patients will develop drug resistance.

Risk factor control:

Hypertension: It can accelerate the development of arteriosclerosis. The higher the blood pressure, the greater the probability of cerebral infarction or recurrence.

Hyperlipidemia: on the one hand, it makes blood thick, blood flow slow, and blood supply to the brain decreases; On the other hand, it damages vascular endothelium and deposits on vascular wall to form atherosclerotic plaque, which directly leads to the occurrence and development of cardiovascular and cerebrovascular diseases. Diabetes: More than 80% of diabetes causes abnormal lipid metabolism, often accompanied by arteriosclerosis, hyperlipidemia and cardiovascular and cerebrovascular diseases; Moreover, the increase of blood sugar content will also increase the viscosity and coagulation of blood, which is conducive to the formation of cerebral infarction.

Heart disease: The blood in the brain comes from the heart. During myocardial infarction and heart failure, insufficient blood supply to the brain will cause cerebral infarction; When rheumatic heart disease is complicated with arrhythmia such as atrial fibrillation, the emboli in atrium fall off and enter the cerebral vessels, which may cause cerebral embolism.

Symptoms and signs:

1, the onset is extremely urgent, and the symptoms often peak in a few seconds or a short time, and a few get worse step by step.

2. Some patients will have temporary mental confusion, headache and convulsions. Secondary brain edema occurring within a few days after occlusion of the aorta will worsen the symptoms and lead to disturbance of consciousness. Severe brain edema can also lead to the risk of fatal intracranial structural displacement (cerebral hernia).

3. Sudden onset of local nervous system symptoms and signs.

4. Internal carotid artery: it can cause ipsilateral blindness, and other symptoms are often indistinguishable from the symptoms and signs after occlusion of the middle cerebral artery and its deep perforating branches.

5, anterior cerebral artery: rare, one side can cause contralateral hemiplegia, (lower limbs are heavier than upper limbs), strong grip reflex, urinary incontinence. Bilateral involvement can cause apathy and confusion, and occasionally silence and spastic paraplegia.

6. Posterior cerebral artery: unilateral hemianopia, disappearance of contralateral hemiplegia, spontaneous thalamic pain, or sudden involuntary hemiplegia; When the dominant hemisphere is involved, alexia can be seen.

7. Vertebrobasilar artery: dizziness, diplopia, eye movement paralysis, ataxia, cross paralysis, abnormal pupil, quadriplegia, difficulty in eating and swallowing, disturbance of consciousness and even death.

8. Middle cerebral artery and its deep perforating branches: the most easily involved, with contralateral hemiplegia (severity), unilateral numbness (loss of sensation) and ipsilateral hemianopia. When the main hemisphere (usually the left side) is involved, it can be manifested as aphasia, and when the non-dominant hemisphere is involved, apraxia will occur.

Precursors of onset:

1, dizziness, headache suddenly aggravated or changed from intermittent headache to persistent severe headache. It is generally believed that headache and dizziness are the precursors of ischemic cerebral infarction, while severe headache with nausea and vomiting is the precursor of hemorrhagic cerebral infarction.

2. Transient visual impairment, manifested as blurred vision, or visual field defect or incomplete vision, usually recovers itself within one hour, which is an early prediction signal of cerebral infarction.

3. Language and mental changes refer to pronunciation difficulties, aphasia and writing difficulties; Personality mutation, reticence, indifference or impatience, irritability, or momentary judgment or mental retardation, lethargy.

4. Other premonitory manifestations, such as nausea, vomiting or colic, or blood pressure fluctuation accompanied by dizziness or tinnitus, and repeated nasal congestion with unknown reasons, are often the recent precursors of hypercholesterolemia to protect brain congestion.

5, drowsiness and lethargy, manifested as repeated yawning, especially the reaction of hypoxia in the respiratory center. With the aggravation of cerebral arteriosclerosis, the arterial lumen becomes narrower and narrower, and cerebral ischemia becomes worse? About 80% people yawn frequently 5 ~ 10 days before the onset of ischemic cerebral infarction. Don't ignore this important warning signal.

6, abnormal body sensation and movement, such as paroxysmal unilateral limb numbness or weakness, loss of objects, unexplained syncope or fall, unilateral facial paralysis, lasting less than 24 hours. Follow-up observation shows that more than half of people have ischemic cerebral infarction 3~5 years after this phenomenon.

7, transient black lemon, refers to the normal person suddenly appear black eyes, can't see the object clearly, after a few seconds or a few minutes back to normal, neither nausea, dizziness, nor any disturbance of consciousness. This is caused by transient retinal ischemia, suggesting that intracranial hemodynamic changes or tiny thrombus temporarily block retinal artery, which is the earliest warning signal of cerebrovascular disease.

How to prevent cerebral infarction;

1, don't be too tired. Overwork or poor rest can easily cause blood pressure fluctuation and cause the formation of cerebral thrombosis.

2, the diet is light, mainly vegetarian, and eat less high-fat foods. Eat 500 grams of vegetables, 250 grams of fruit and 250 ml of milk every day.

3, quit smoking and limit alcohol, alcohol and tobacco can damage the intima of blood vessels, and can shrink small blood vessels, narrow the lumen, and easily form thrombosis.

4. Emotional stability. Fury or long-term depression and anxiety can cause vascular and neurological dysfunction, which is an important inducement to induce cerebral infarction.

5. Diabetic patients with high blood viscosity need to control blood sugar and reduce blood viscosity.

6. For patients who have suffered from cerebral infarction, it is suggested to take low-dose aspirin for a long time under the condition of monitoring blood viscosity and cerebrovascular diseases to prevent recurrence.

7. Control blood pressure. Patients with hypertension must take antihypertensive drugs for a long time and monitor their blood pressure frequently. They should not take medicine according to whether they have dizziness or headache.

Dietary conditioning for patients with cerebral infarction;

1, control the total heat. If you control the intake of total fat in your diet, your blood lipid will drop.

2. Limit the intake of refined sugar and sugary sweets, including snacks, sweets and drinks.

3, patients with cerebral infarction have less salt, so they should adopt a low-salt diet, 3 grams of salt a day, which can be cooked and mixed with salt.

4. Patients with cerebral infarction should always drink water, especially in the morning and evening. This can dilute the blood and prevent the formation of thrombus.

5. Pay attention to cooking materials. In order to increase appetite, you can add some vinegar, tomato sauce and sesame sauce when cooking. Vinegar can not only flavor, but also accelerate the dissolution of fat and promote digestion and absorption. Sesame paste contains high calcium content, which can be supplemented by regular consumption and is beneficial to prevent cerebral hemorrhage.

Lecture on health education knowledge 3

In order to improve rural residents' health awareness, let rural residents know the concept of health, factors affecting health and healthy lifestyle, and establish a healthy life concept. Decided to hold a lecture on health education knowledge, and is hereby notified as follows:

Time: 8: 30 on May 6th, 20XX-10: 30.

Venue: Health Education Room of Ji Zheng Township Health Center.

Lecture content: establish a healthy concept

Lecturer: Wang Bingjun

Participants: public health workers and all rural doctors.

Ji Zheng town hospitals

20XX May 4th

Healthy lifestyle and behavior

Speaker: Wang Bingjun

1. The diet should be mainly cereal, eat more vegetables, fruits and potatoes, and pay attention to the collocation of meat and vegetables.

Cereal is the main part of China residents' traditional diet, the best basic food for human beings and the most economical energy. A cereal-based diet can not only provide enough energy, but also avoid excessive fat intake, which is conducive to preventing cardiovascular and cerebrovascular diseases, diabetes and cancer. The Dietary Guide for China Residents points out that adults should consume 250g ~ 400g of cereal every day.

Vegetables and fruits are important sources of vitamins, minerals, dietary fiber and phytochemicals. Potatoes are rich in starch, dietary fiber and various vitamins and minerals. Vegetables, fruits and potatoes play an important role in keeping healthy, maintaining normal intestinal function, improving immunity and reducing the risk of chronic diseases such as obesity, diabetes and hypertension. According to the dietary guidelines of China residents, adults eat 300-500g vegetables and 200-400g fruits every day.

Food can be divided into five categories: cereals (rice, flour, miscellaneous grains, etc. ) and potatoes, animal foods (meat, poultry, fish, milk, eggs, etc. ), beans and nuts (soybeans, other dried beans, peanuts, walnuts, etc. ), vegetables and fruits, pure energy food (animal and vegetable oil, starch, sugar, wine, etc. ) The nutrients contained in various foods are not exactly the same. Every food can provide at least one nutrient, and no natural food can provide all the nutrients needed by the human body. A diet consisting of a variety of foods can meet the various nutritional needs of the human body and achieve the purpose of reasonable nutrition and health promotion.

2. Eat milk, beans and their products regularly.

Milk food is an excellent source of dietary calcium because of its complete nutrients, appropriate proportion of nutrients and easy digestion and absorption. Drinking milk for children and adolescents is beneficial to growth and bone health, thus delaying the age of osteoporosis in adulthood; Drinking milk for middle-aged and elderly people can reduce bone loss and is beneficial to bone health. It is suggested that each person should drink 300 grams of milk or equivalent dairy products every day. Those with hyperlipidemia and overweight and obesity tendency should choose fat-reduced, low-fat, skim milk and its products.

Soybean is rich in high-quality protein, essential fatty acids, B vitamins, vitamin E, dietary fiber and other nutrients, as well as phytochemicals needed by human body such as phospholipids, oligosaccharides, isoflavones and phytosterols. Eating more soybeans and their products can not only increase the intake of high-quality protein, but also prevent the adverse effects of eating too much meat. It is recommended that each person consume 30 to 50 grams of soybeans or a considerable amount of soy products every day.

3. The diet should be light and less salt.

Excessive intake of edible oil and salt is a common dietary problem for urban and rural residents in China. Excessive salt intake is closely related to the prevalence of hypertension. Fat is one of the important sources of human energy, but excessive fat intake will increase the risk of chronic diseases such as obesity, hyperlipidemia and atherosclerosis. We should develop the habit of light and salty diet, that is, the diet should not be too greasy or salty, and we should not eat too much animal food and fried, smoked and pickled food. It is suggested that the amount of edible oil per person per day should not exceed 25 grams; The intake of salt should not exceed 6 grams (including the salt content in soy sauce, pickles and sauces).

4. Maintain normal weight and avoid overweight and obesity.

Whether the weight is normal or not can be judged by the body mass index (BMI). The normal weight of adults means that the body mass index is between 18.5 kg/m2 and 23.9 kg/m2. The formula is: body mass index = weight (kg)/ height (m) 2 Overweight and obesity are one of the main reasons for the increased prevalence of cardiovascular diseases, diabetes and some tumors. Food intake and exercise are two main factors to maintain a healthy weight. Food provides human energy, and exercise consumes energy. If you eat too much and don't exercise enough, excess energy will accumulate in the body in the form of fat, increase weight and cause overweight or obesity; On the contrary, if you don't eat enough, you may be underweight or thin due to lack of energy. Overweight and underweight are both unhealthy manifestations, which are easy to suffer from many diseases and shorten life expectancy. Therefore, it is necessary to maintain the balance between food intake and exercise, so that the energy provided by various foods can not only meet the needs of the body, but also cause excess energy in the body and keep the weight within a suitable range.

5. See a doctor in time after getting sick, cooperate with the doctor and take medicine according to the doctor's advice.

After getting sick, you should see a doctor in time, diagnose and treat early, so as not to delay the best time of treatment, which can not only reduce the harm of the disease, but also save the cost of seeing a doctor.

In the process of disease treatment and rehabilitation, we must strictly follow the doctor's treatment plan and actively cooperate with the doctor. Follow the doctor's advice, take medicine on time and in quantity, adjust diet, determine the amount of activity, and improve your behavior according to the doctor's requirements. Don't seek medical advice and medicine at will, and treat with several schemes at the same time, and you can't buy medicine for treatment by yourself based on only a little knowledge and hearsay.

6. Don't abuse antibiotics.

Abuse of antibiotics refers to irregular use, unnecessary use, overtime and excessive use, insufficient dosage or insufficient course of treatment. Abuse of antibiotics can easily lead to drug resistance of pathogenic microorganisms, which leads to the gradual loss of the original efficacy of antibiotics and can not play a role in treating diseases. Abuse of some antibiotics may also lead to deafness (especially in children) and imbalance of flora in human body, and even life-threatening in severe cases.

Antibiotics are prescription drugs and can only be used reasonably under the guidance of doctors. 42. Food should be cooked; Wash raw vegetables and fruits.

Food should be cooked thoroughly before eating. After eating the leftovers in the refrigerator, you should reheat them thoroughly before eating. Tableware such as bowls and chopsticks should be boiled and disinfected frequently.

Raw vegetables and fruits may be contaminated by pathogenic bacteria, parasite eggs and toxic and harmful chemicals. Soak it for 10 minutes before eating it raw, and then wash it thoroughly with water.

7. Raw and cooked food should be stored and treated separately.

In the process of food processing and storage, if you don't pay attention to separating raw food from cooked food, such as cutting cooked food with a knife that has cut raw food, and then holding cooked food in a container that holds raw food, cooked food may be contaminated by bacteria and parasite eggs on raw food, which is harmful to human health. Therefore, raw and cooked foods should be placed and treated separately to avoid direct or indirect contact between raw and cooked foods.

8. Don't eat food that has gone bad and expired.

The shelf life of food refers to the time limit for maintaining the quality of food under the condition of food labeling. During this period, the food quality meets the requirements on the label or product standards.

Any food has a shelf life. If it is stored for too long or improperly, it will be polluted or deteriorated. Contaminated or spoiled food is inedible. Food will go bad if it is kept in the refrigerator for a long time; When storing food in the refrigerator, pay attention to separating raw food from cooked food, and cover the cooked food for storage.

Don't eat expired food. Don't eat food without the exact manufacturer's name, address, production date and shelf life on the label.