What kind of thinking is this?
1) My Uncle died of lung cancer at 52.
2) My Grandpa died of heart disease at 76.
3) My Sister had a serious case of asthma and died at 42.
4) My other Uncle died of a heart attack at 90.
5) My Aunt had a heart attack at 92; but she was a smoker so smoking causes heart attacks.
6) My other Aunt died of lung cancer at 55; but she was a smoker so smoking causes lung cancer.
The first 4 were never smokers or around smokers.