Many mothers and children lacked food, which caused 3.4 million deaths in 2000. In poor countries, about 654.38+700 million people are malnourished, of which more than 3 million people die every year.
2. Unsafe sex
In 2000, unsafe sex caused 2.9 million deaths, mainly through HIV infection.
In Africa, more than 99% of HIV-infected people are caused by unsafe sex, among which sub-Saharan Africa has the most infected people, where the average life expectancy is only 47 years.
3. Hypertension
Hypertension causes 765,438+10,000 deaths every year, accounting for 13% of all deaths. 62% of strokes and 49% of heart disease cases are related to hypertension.
4. Smoking products
In 2000, 4.9 million people died of various diseases caused by smoking, accounting for 8.8% of the global deaths. WHO believes that by 2020, 8.4 million people will die from smoking every year.
5. alcohol
Alcohol causes 654.38+800,000 deaths every year, and it is estimated that it will cause 20% to 30% different kinds of cancers and liver diseases. Alcohol is also a major factor in many murders, car accidents and self-mutilation. Human smoking
6. The drinking water is not clean and the sanitary conditions are poor.
Every year, 6.5438+0.7 million people die from using bad water sources and living in harsh environment, and most diarrhea symptoms are also related to this.
7. High cholesterol
High cholesterol caused 4.4 million deaths, 18% cardiovascular diseases.
8. Indoor smog
In poor countries, solid fuels such as wood and coal are still widely used for cooking and heating. Indoor smog causes 35.7% respiratory infection, 22% long-term lung disease and 65,438+0.5% cancer.
9. Iron deficiency
Iron deficiency causes 800,000 deaths worldwide every year.
10. Overweight
In some middle-and high-income countries, it is estimated that 654.38 billion adults are overweight, while an estimated 3 million people are obese. In North America and Europe, more than 500,000 people die from diseases caused by obesity every year.