Why asthma is increasing in urban areas
With the acceleration of global urbanization, more than half of the population lives in cities, and the impact of urban environment on human health is becoming more and more prominent. Asthma, as the most common chronic respiratory disease in the world, is rising at an alarming rate, affecting the lives of about 260 million people. Although the academic community has long confirmed that single environmental factors such as air pollution and lack of green space are related to asthma, they often exist at the same time in reality, and there is little systematic research on the combined effect on the risk of asthma.
Research indicates that
Analysis of the causes of asthma
Environmental factors:
Lifestyle:
Use of electrical appliances:
Dietary structure:
Mental factors:
Influence of drugs:
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HealthClimate Change Is Causing Seasonal Allergy Surges
Seasonal allergies are usually caused by pollen, dust mites, temperature changes, UV exposure, and other factors, and are a manifestation of allergic reactions. "Summer and autumn pollen is closely related to asthma. Some patients develop asthma in late July, and their symptoms only completely subside after the temperature drops." Climate change exacerbates allergies and asthma. Climate change leads to increased exposure to environmental allergens, such as increased greenhouse gases, rising global temperatures, and increased pollutants. Another factor is the influence of microorganisms. For example, the skin and nasal microbiota of young Russians are more diverse than those of Finnish populations, and microorganisms can guide gene activation and epigenetic adaptation. Another hypothesis is the epithelial barrier hypothesis, which posits that individuals with impaired epithelial barrier function often experience inflammatory responses within their epithelial cells, releasing various alarm signals that attract pro-inflammatory cell aggregation. The immune mechanisms leading to epithelial barrier dysfunction primarily involve type 2 immune responses, ultimately resulting in the formation of an allergic sensitization state and the occurrence of allergic reactions.
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HealthYour Mind Affects Your Body More Than You Think
"I am getting better and better every day." Some people recite this sentence several times every day when they wake up and before going to bed. For them, this sentence is not a flowery expression, but a statement that health comes from a positive attitude. When it comes to health, many people experience that a positive attitude will bring benefits to physical health, while a negative attitude may cause illness. It is dangerous for a person to have negative thoughts. In real life, there are examples everywhere of people who have harmed their health because of their inner frustration, hatred, fear or guilt. Therefore, to maintain physical health, we must first get rid of unhealthy thoughts. We must cleanse our minds and get rid of negative thoughts in our hearts for the sake of physical health. Resentment and dissatisfaction often cause illness. If a person is repeatedly frustrated in his job, his mind will send a psychological hint of "sickness" to the body to escape reality.
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HealthIs sleep more important than diet?
Maintaining healthy eating habits, regular physical exercise, and adequate quality sleep are key factors in maintaining good health. There is a two-way relationship between healthy eating and sleep. Dietary structure directly affects sleep quality; for example, high-sugar, high-fat, or caffeinated foods can disrupt sleep. Simultaneously, insufficient sleep can trigger hormonal changes, leading to abnormal appetite and metabolic disorders, creating a vicious cycle. Melatonin synthesis, blood sugar stability, and gut health are key factors linking the two.
