Certain lung cancer cells produce a substance that causes a sharp drop in the level of sodium in the blood, which can cause many symptoms, including confusion and sometimes even coma. None of these symptoms is a sure sign of lung cancer. Only a physician can tell whether a patient's symptoms are caused by cancer or by another problem. Consult your physician for a diagnosis. A risk factor is anything that increases a person's chance of getting a disease such as cancer.
Different cancers have different risk factors.
Because marijuana is an illegal substance, it is not possible to control whether it contains fungi, pesticides, and other additives. It is produced by the natural breakdown of uranium. A are at increased risk of lung cancer. A may also increase lung cancer risk. In some cities, air pollution may slightly increase the risk of lung cancer.