How does a person get lung cancer?

Lung cancer happens when abnormal cells grow uncontrollably in the lungs, often due to smoking, radon, or chemical exposure. Having recently completed my treatment for early-stage lung cancer, I urge everyone not to ignore a persistent cough or breathlessness. Early detection is what saved my life.

It is primarily caused by active or passive smoking, and exposure to industrial toxins or severe air pollution over many years. Don't waste time looking up symptoms online if you have chronic chest pain or a cough that won't go away. Schedule an appointment with a pulmonologist and get a chest CT scan done.

Look, smoking is the number one cause, but non-smokers can get it too due to passive smoke and pollution. If someone in your family has a chronic cough, chest discomfort, or is coughing up blood, don't ignore it as a normal allergy. Take them to a good doctor immediately.

My uncle was recently diagnosed with lung cancer despite being a non-smoker, and it has made me really worried about city pollution. Does anyone else feel constantly anxious about breathing bad air, or has had a similar family experience? I'm thinking of getting a lung checkup done soon.

Basically, inhaling toxic stuff like cigarette smoke or heavy city smog damages lung cells over time until they mutate. Honestly, reading about this at 2 AM is making me regret every single breath of polluted city air I take. If you have real symptoms, skip the late-night google search and see a doctor.