Lungs are responsible for gas exchange, supplying oxygen to the body and expelling carbon dioxide. Even without smoking, the function of this organ can silently decline over time if the body is frequently exposed to adverse factors.

Inhaling secondhand smoke

According to Very Well Health, cigarette smoke contains thousands of toxic chemicals. When inhaled, these chemicals enter the respiratory tract, causing irritation and inflammation of the bronchial lining. Frequent exposure reduces the lungs' self-cleaning ability, making it easier for dust and bacteria to accumulate. In the long term, this condition can increase the risk of chronic cough, shortness of breath, and asthma. Children, pregnant women, and the elderly are particularly sensitive and more susceptible to severe effects.

Exposure to occupational dust and chemicals

Individuals who regularly work in environments with high levels of dust or chemicals, such as wood dust, cement, welding fumes, or paint fumes, are at risk of lung damage. Fine dust particles and chemicals, when inhaled, can penetrate deep into the respiratory tract and alveoli, causing inflammation and damage to lung tissue. With prolonged exposure, the lungs' gas exchange function can decline. The risk is higher if workers do not use proper protective equipment or work in poorly ventilated environments.

Working in dusty environments can easily damage the lungs. AI-generated image.

Untreated respiratory illnesses

Respiratory diseases such as bronchitis, pneumonia, bronchial asthma, or pulmonary tuberculosis, if not treated correctly, can lead to prolonged inflammation, damaging the lungs and airways. Chronic inflammation gradually causes the structures within the lungs to lose elasticity and form scars. Over time, patients may experience frequent coughing, shortness of breath, and easily recurring infections, according to Times of India.

Patients with these conditions need to adhere to their treatment regimen, attend follow-up appointments, and not arbitrarily stop medication as soon as symptoms subside.

Prolonged heavy alcohol consumption

Chronic heavy alcohol consumption can weaken the immune system, reducing the body's ability to fight bacteria and virus that cause respiratory diseases, thereby increasing the risk of pneumonia and other respiratory infections. Alcohol also impairs the activity of cilia – the mechanism that helps remove dust, bacteria, and mucus from the airways – making it easier for these agents to accumulate.

Le Nguyen (Compiled)