Left Handed People More Prone To Cancer ????

I am not a doctor and know little about these things, but gosh, I just do not understand where some of these studies come from. This one done on left handed people being more prone to breast cancer especially.

Maybe I missed something while reading but why would a person that has "more" estrogen be caused to be born "left handed" . I am right handed but my brother is left handed. Does that mean he has more estrogen then me? I have three daughters, one of which is left handed, does that mean she has more estrogen then her two siblings and more susceptible to contracting breast cancer?

Studies are good, and lord knows they sometimes help save lives, but some of these studies make me chuckle but then again, WHO KNOWS.

Just wanted to add my comment and if you are left handed, I would not add any additional worries to your life. Just my opinion.

Everyone have a great day

Irene from Tampa