Even a turned off phone on the table interferes with work.
Smartphones make it difficult to concentrate on work, even if they are turned off, but are within sight. These conclusions were made by scientists from the University of Paderborn during a study involving 42 people aged 20-34 years. The effect can be explained by the fact that even during work, people involuntarily glance at the phone. Because of this, the brain has to suppress the desire to turn on the gadget in order, for example, to read messages. This process takes away cognitive resources. Specifically, working memory.