All I know is that my mother smoked 3 packs a day for more than 40 years. Her cardiologist said that it caused extreme hypertention, resulting in peripheral vascular disease (resulting in the loss of her toes) and renal failure. She quit smoking at 62 and died less than a year later. I know she didn't eat right or exercise either, so that could have contributed, but I am inclined to take her doctor's word at face falue.
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