Reasons for not running well in foggy weather

When the water vapor is sufficient, the breeze and atmosphere are stable, the temperature is close to zero, and the relative humidity reaches 100%, the water vapor in the air will condense into tiny water droplets suspended in the air, which will reduce the ground visibility. This weather phenomenon is called fog. Fog occurs between February and April in spring. When the water vapor suspended in the atmosphere condenses in the air and the visibility is lower than 1 km, meteorology calls this weather phenomenon fog. Fog formation: first, cooling, second, humidification, increasing water vapor content. The types of fog are radiation fog, advection fog, mixed fog, evaporation fog and smoke. The reason why running is not good in foggy days is the condensation of water vapor suspended at low altitude. In the bustling suburbs, these condensate droplets often contain many harmful chemicals, floating dust, pathogenic microorganisms and so on in automobile exhaust. Especially in the foggy weather for several days, due to the strong cold air, there is no obvious airflow, and various pollutants in the near-surface layer accumulate. According to the detection of the health department, there are a considerable number of f"s (Fourier) pathogens in the fog. It is a multicellular microorganism, which has the ability of autonomous exercise infection and can cause disease independently or jointly with others. Therefore, in foggy days, it is best not to practice outdoors, especially on the roadside, and not to do strenuous exercise between open spaces and buildings, so as not to absorb too many harmful substances and induce tracheitis, pharyngitis, conjunctivitis, rhinitis and cerebral hemorrhage. In addition, don't do physical exercises such as running in foggy days, such as sports and other diseases. Because when doing these activities, the oxygen consumption in the body will increase and breathing will inevitably deepen. At this time, the fog contains more water vapor, which hinders the gas exchange in alveoli and causes dizziness due to lack of oxygen in the brain. At the same time, during exercise, due to the strengthening of muscle and bone activities, the heat production in the body is greatly increased, and it is necessary to sweat and dissipate heat. However, the foggy weather is humid, and sweat is not easy to evaporate, which is not conducive to skin heat dissipation and will make people feel sultry and uncomfortable. In addition, before sunrise, there is a lot of carbon dioxide between yin and yang. When there is fog, the wind is weak and carbon dioxide is difficult to dissipate. In the morning, it is not suitable to exercise like on the boulevard in the park.