I'm not a smoker and never have been but I've been around it my entire life. I hate it and I hate what it does to people. My Dad, Mom, sister and two brothers have smoked forever. My Mom quit 20 years prior to her death of a stroke. My Dad quit smoking in 1990 and died 2009 (COPD). My Maternal Gfather died of lung cancer, 2 maternal Aunt's died of pancreatic cancer another of lung cancer. Maternal Uncle has had prostrate, colon and bladder cancer he is 82. Maternal cousin going thry pancreatic cancer now an another maternal cousin colon cancer (non smoker) another maternal cousin stomach cancer. All smokers but one. I understand you are scared. Many Blessings to you.