Where do you hold your cell phone? Your brain decides[ Mon, 20 May 2013 14:54:08 GMT ]When you talk on the cellphone, do you hold it up to your right ear or left? A group of researchers at the Henry Ford Health System in Michigan suggest that how you hold your phone could give away the dominant half of your brain. The lesson the group took away was this: Most right-handed people, who eat and write and throw with their right hand, also prefer to talk with their cellphone held up to ...