LEFT-HANDEDNESS GENE LINKED TO MENTAL ILLNESS, SUGGESTS STUDY
The gene that likely makes people left-handed may slightly raise the risk of developing psychotic mental illnesses, according to an international study.
Ref. https://www.cbc.ca/technology/story/2007/07...lefthanded.html
This is gross so it might not make the page... the other day I saw a history of the human civilization and of all things toilet paper, and well they threw out history the right hand has been considered the best hand. Why? Before toilet paper was invented they used one of the hands to cleanse themselves. Guess witch one? The one which was considered bad manner to use to shake hands or show a wave.