"It's still got to be Second Hand Smoke. Or something."
My best friend died two years ago from lung & liver cancer. She never smoked and never drank.
Yeah. It's got to be something...it's called being genetically pre-disposed. These things run in families. Her Dad died of lung cancer, her Mother of brain cancer and she has a remaining brother and sister who are terrified of their fate, as well.
They may as well just kill themselves right now, Eh? They may have accidentally inhaled cigarette smoke at some point in their meaningless lives. Good Grief.
I know. And their comments will probably get worse as the thread progresses ...
My mom died of lung cancer almost ten years ago and she never smoked. Went into the hospital with pneumonia and found out she had lung cancer and she died five weeks later.
One thing that most folks are generally not aware of is that there are different types of lung cancer. Some, like small cell and squamous cell, occur almost exclusively in smokers. Then there is bronchoalveolar carcinoma, which is not predisposed to smokers, and in fact occurs most frequently in non-smokers, and in women.
In addition, there are various genetic mutations that predispose one to the development of cancer, as you mention.
There are indeed other things that cause lung cancer.