There have often been reports on how bad the smartphone is as a toilet companion for the back. Now a research team of the US Beth Israel Deaconess Medical Center In the magazine PLOS One the thesis underpins again. In their study, they questioned 125 people from the intestinal cancer provision of their lifestyle and their toilet habits and subjected them to a colonoscopy. The result: The people who use their smartphone on the toilet were longer on the toilet and had a 46 percent higher risk of hemorrhoid compared to non-users.