I find it intresteing all these studies on smoking and 2nd hand smoke.
my grandfather was born in 1901 and started smoking when he was 13 and quit when he was 80 and died at 104 years young. He lived all over the country including Iowa, Work in coal mines Ohio and married my grandmother who is from waco Tx. who smoked from the time of 16 tell she was 75 and past a way at 96 years young. By the way they lived for 20 years in south waco where radon gas is high. Intresting that my mother who is 77 and smoked for 40 years and and live 19 years in south waco tx and to this day is very healthy. But my aunt which is my dads sister live most of her life and never smoked in corpus christi Tx dies at 70 with lung cancer. intresting