If you are single, you can draw social security and work without paying taxes if your income is $25,000 or less. For a couple that is married and filing a joint return, the untaxed base is $34,000 per year. If you are single, you can draw social security and work without paying taxes if your income is $25,000 or less. For a couple that is married and filing a joint return, the untaxed base is $34,000 per year.
Bronchioles and alveoli. Smoking causes the majority of lung cancers â both in smokers and in people exposed to secondhand smoke. But lung cancer also occurs in people who never smoked and in those who never had prolonged exposure to secondhand smoke.In these cases, there may be no clear cause of lung cancer.he two general types of lung cancer include: 1  Small cell lung cancer. 2  Small cell lung cancer occurs almost exclusively in heavy smokers and is less common than non-small cell lung cancer. 3  Non-small cell lung cancer.
About 70 of them are known to cause cancer. Smoking cigarettes is the number-one risk factor for lung cancer. But, smoking can affect your entire body, and is known to cause cancer in the: 1  Lungs. 2  Trachea. 3  Bronchus. 4  Esophagus. 5  Oral Cavity. 6  Lip.