“Smoking is harmful to health” sure, this is a common massage that you can hear every day. But most people understand that smoking only easily lead to pneumonia and lung cancer, but very few know that the substances in tobacco also cause thousands of different dangerous diseases.
- Chronic obstructive pulmonary disease
The disease occurs because cigarette smoke stimulates the airways, causing airway inflammation. When inflamed, the airways will secret more sputum, the feathers used to move dirt out of the lungs is paralyzed and destroyed, so smokers more prone to colds, sore throats, bronchitis and pneumonia than people who do not smoke.
Chronic inflammation in the lungs makes inflammatory cells flock to secrete substances that destroy lung tissue. All lead to airway obstruction due to viscous sputum inside the airways, airways inflammation and lacks of lung tissue outside to help stretch the airways. This condition called chronic obstructive pulmonary disease, patients initially present with minor symptoms such as cough, phlegm and shortness of breath during exercise, the disease is only diagnosed early by respiratory chart. In addition to poor lung function, smokers’ lung function is also declined faster from 2 to 4 times higher than normal.
Later, the patient breathing is increasingly difficult. Initially, they only feel difficulty in breathing during exercise, then bathing, dressing, eating or even while doing nothing. The patients have to get emergency, oxygen, even ventilator.
The disease lasts for 20 years with acute exacerbations. The patient becomes disabled, not labor and cannot be self-service, leading to death due to respiratory failure. Hence, early detection of chronic obstructive pulmonary disease among smokers will help the treatment easier and more positive.
- Disease related to cancer
Smoking directly causes pharynx cancer, lung cancer and esophageal cancer. Besides, tobacco smoke also assists in the development of bladder, kidney, urinary tract, pancreas, stomachs and cervix cancer.
Smoking before the age of 15 will have the risk of cancer 4 times higher than people who smoke after 25 years old. And if people with chronic obstructive pulmonary disease still smoke, the risk of lung cancer will increase from 3 to 7 times higher than normal.
- Other dangerous disease
Tobacco smoke also contains toxic substances such as carbon monoxide (CO), causing hypoxia of lung parenchyma. In addition, cigarettes also cause atherosclerosis, making the blood vessels blocked causing a heart attack, myocardial infarction and sudden death.