 [ Symptoms ] do most people get infected by the common cold when touching the nose when touching the eyes or breathing in droplets  it is known that most people contract a cold virus by those three pathwaysvectors however which of them is the most commonly occurring one in the population [ Disease ] smoking cigarettes harms nearly every organ of the body the list of diseases caused by smoking has been expanded to include abdominal aortic aneurysm acute myeloid leukemia cataracts cervical cancer kidney cancer pancreatic cancer pneumonia periodontitis and stomach cancer these are in addition to diseases previously known to be caused by smoking including bladder esophageal laryngeal lung oral and throat cancers chronic lung diseases coronary heart and cardiovascular diseases as well as reproductive effects and sudden infant death syndrome