"Choose a healthy lifestyle" Understand yourself and improve your health PPT courseware 3

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"Choose a healthy lifestyle" Understand yourself and improve your health PPT courseware 3

1. What is lifestyle?

Lifestyle refers to the various behavioral habits that people follow in their daily lives. Including eating habits, living habits, daily life arrangements, entertainment methods, and participation in social activities.

People's lifestyles are closely related to health

1. Over the past 50 years, what changes have occurred in the main types of diseases that cause death among urban residents in my country?

In 1957, the top three leading causes of death among urban residents in my country were respiratory diseases, acute infectious diseases, and tuberculosis. In 2009, respiratory diseases dropped from the first place to the fourth place in the list of causes of death, with acute infections disease and tuberculosis ranked after 7th. On the contrary, heart disease, cerebrovascular disease and malignant tumors, which ranked fifth, sixth and seventh among the causes of death in 1957, rose to second, third and first place respectively in 2009.

2. Why does this change happen? What do these changes indicate?

Since diseases such as respiratory diseases, acute infectious diseases, and tuberculosis are mainly caused by poor living environment and nutritional conditions, cardiovascular and cerebrovascular diseases and malignant tumors are not only affected by genetic factors and environment, but also related to unhealthy lifestyles. .

Changes in causes of death indicate that as people's living standards improve, psychological factors and behavioral factors play a vital role in health.

[Explore] The effect of alcohol on the heart rate of Daphnia:

Ask a question Does alcohol have any effect on Daphnia's heart rate?

Make a hypothesis: Alcohol has an effect on Daphnia heart rate.

Experimental steps:

1. First, mix alcohol with a volume fraction of 95% into alcohol solutions with concentrations of 5%, 10%, 15%, and 20%.

2. The experiment used 4 adult water fleas of the same size, divided into experimental group and control group.

3. During the experiment, first find the heart of the water flea, and measure the number of heartbeats of the water flea at different alcohol concentrations within a specified time (such as 10 seconds) (measure three times and take the average)

Effect of tobacco extract on Daphnia heart rate:

Ask a question:

Make assumptions:

Experimental steps:

1. First put half a cigarette of the same brand in 50 mL, 30 mL, and 10 mL distilled water, and soak them for the same time (for example, 1 day).

2. The experiment used 3 adult water fleas of the same size, divided into a control group and an experimental group.

3. During the experiment, first find the heart of the water flea under the microscope, and measure the average number of heartbeats of the water flea in different tobacco extracts within a specified time (such as 10 seconds).

(2) The harm of alcohol to health:

Excessive drinking can cause many health problems, including gastritis, stomach bleeding, pancreatitis, gastrointestinal disorders, etc. Alcohol is metabolized by the liver. Excessive drinking is particularly harmful to the liver and can cause hepatitis, cirrhosis and liver cancer. The cardiovascular damage caused by alcohol is manifested by increased blood pressure, arteriosclerosis and myocardial damage.

Alcoholism: Alcohol can damage the human heart and blood vessels. Long-term alcoholism can cause alcoholism and even depression of the central nervous system.

(3) The dangers of taking drugs

Drugs such as opium, heroin, morphine, K powder, marijuana, cocaine, etc. are more harmful to the human body. Taking drugs can damage the human nervous system, reduce the body's immune function, damage the heart and lungs, cause respiratory paralysis, and in severe cases can lead to death.

Teenagers are in a period of growth and development, and drug abuse is more harmful. For the physical and mental health of yourself and others, you must ban smoking and reject drugs.

unhealthy lifestyle

The World Health Organization (WHO) on Mental Health proposes 18 unhealthy lifestyles:

1. Smoking, especially those who smoke more than 20 cigarettes a day, increases the risk of chronic diseases rapidly.

2. Unhygienic eating habits absorb too many calories, saturated fatty acids, and cholesterol, leading to obesity, hyperlipidemia, and other diseases.

3. Excessive drinking.

4. Lack of exercise leads to decreased cardiorespiratory endurance, weakened muscle strength and increased average muscle fat mass.

5. Overload, overwork, long-term burnout and lack of rest.

6. Chronic troubled emotions, anxiety, depression, nervousness, and interpersonal discord, resulting in chronic fatigue and energy loss.

3. Healthy lifestyle

1. Good nutritious meals

We advocate: "Eat well in the morning, full at lunch, and eat less in the evening"

8 dietary guidelines: Eat a variety of foods, mainly cereals. Fresh vegetables, fruits and potatoes complement all three meals. Eating more soy milk is better than taking supplements with medicine. Fish, poultry, eggs and meat should be eaten regularly and in moderation. Exercise, eat, and keep your intake and output consistent. Light, less oily, low-fat food. Limit your drinking and learn to say no. Eat clean and keep good doors.

2. Keep up with physical exercise

Life requires exercise. Too little or too much exercise is not good for health. Individuals can choose the appropriate type of exercise based on their age, physical condition and environment.

The form of exercise is not important. What is important is to do it according to your ability, step by step and persevere. The simplest exercise is brisk walking, walking 3 kilometers every day, or doing other exercises for more than 30 minutes. Exercise at least 5 times a week. The appropriate intensity of exercise is when your heart rate reaches 170 minus your age. It is best to maintain this state of accelerated heart rate and body heat for more than 15 minutes.

3. Work and rest on time

4. No smoking, no drinking, no drugs

When tobacco is burned, harmful substances such as nicotine and tar in the smoke enter the human body and can induce a variety of respiratory diseases and even lung cancer.

Drug abuse can damage the human nervous system, reduce the body's immune function, damage the heart and lungs, cause respiratory paralysis, and even lead to death.

Choosing a healthy lifestyle should start with children and teenagers

1. Diseases of modern civilization are major diseases currently affecting human health and must attract the attention of young people.

2. Although most chronic diseases develop in adulthood, many of the associated unhealthy lifestyle behaviors develop during childhood and adolescence.

3. The age of patients with diseases of modern civilization has a tendency to gradually decrease.

Choosing a healthy lifestyle not only helps prevent various diseases, especially some chronic and non-communicable diseases, but also helps improve people's health and quality of life.

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For more information about the PPT courseware "Understand Yourself to Improve Your Health and Choose a Healthy Lifestyle", please click the "Understand Yourself and Improve Your Health ppt and Choose a Healthy Lifestyle ppt" tag.

"Choose a healthy lifestyle" Understanding yourself and improving your health PPT courseware 6:

"Choose a Healthy Lifestyle" Understanding Yourself and Improving Health PPT Courseware 6 1. Learning Objectives 1. Understand the impact of lifestyle on health. 2. Understand the harm of alcoholism and smoking to human health. 3. Know what a healthy lifestyle includes. two,..

"Choose a healthy lifestyle" Understand yourself and improve your health PPT courseware 5:

"Choose a Healthy Lifestyle" Understanding Yourself and Improving Health PPT Courseware 5 Textbook Background The improvement of modern living standards has changed people's lifestyles, which has brought about various hidden dangers and has a profound, comprehensive and lasting impact. people's health. Guide students...

"Choose a healthy lifestyle" Understand yourself and improve your health PPT courseware 4:

"Choose a Healthy Lifestyle" Understanding Yourself and Improving Health PPT Courseware 4 The World Health Organization has formulated 10 standards for health based on the meaning of health: 1. Abundant energy, able to take on daily life and heavy work calmly without feeling overly nervous and fatigue. ..

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Update Time: 2024-11-17

This template belongs to biology courseware People's Education Edition Biology for Grade 8, Volume 2 industry PPT template

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