Smoking is harmful to health, but people ’s awareness of its hazards is superficial. When family members suggest quitting smoking, most people also perfunctory, knowing that smoking is harmful, but do not want to quit smoking. Some people say that they will be dizzy when they start smoking. So why would it be dizzy to start smoking?
Smoking causes dizziness mainly because the smoke contains carbon monoxide and nicotine. The affinity of carbon monoxide for hemoglobin is 200 to 300 times that of oxygen and hemoglobin. When smoking fiercely, a lot of smoke will enter the lungs of the human body. The lung is an important organ in which oxygen is mixed into the blood. If there is not enough oxygen in the blood at this time, the oxygen in the body will decrease and the head of the hypoxic person will faint.
Dizziness is mainly due to cerebral hypoxia. When smoking, inhaling a lot of smoke, the oxygen content is very low, it will cause hypoxia. Some people have a strong cardiopulmonary function, and their cardiovascular and cerebrovascular functions are not severely affected, so they cannot feel anything when they start smoking. They may do these things uncontrollably, so the body will react uncomfortably.
Smoking causes lung cancer. Nine out of ten people die of lung cancer because of long-term smoking. Cancer cells of lung cancer can also spread to other blood vessels and organs. Smoking also causes emphysema, and the tension on the surface of the alveoli is limited, resulting in difficulty breathing. Gastric ulcer wounds are also not easy to repair, and may also expand the wound surface. Smoking can cause nervous and mental tension, accelerate the secretion of saliva and gastric mucus, increase the tension of the gastrointestinal tract, and also make the gastrointestinal muscles contract and anorexia.