That you run across people that smoked like chimneys and live into their 90s doesn't mean smoking doesn't kill a lot of people. Individual anecdotes don't beat masses of evidence.
I'm left handed, but male.
My mom was also left handed, and passed away at the age of 88. I am left handed. Wait, I’ve got a pain in my chest...BRB
One of my daughters is left-handed. She is a mirror-image twin, so she has the same genetic make-up as her sister.
They are only 10, and alive and kicking. However, she did almost die as a baby. She was on a ventilator for a month, and her sister was on one for a week. She is also about 10 pounds heavier than her sister. I almost wonder if that has something to do with it. Maybe left-handed women are not as active (something to do with how active they are).
Do left-handed women really have a risk of death greater than 100%?
But if she had been right handed she would have lived to be 101.