the Swedish researchers from the Ericsson company conducted research in which found out that slow loading of video is capable to cause a stress. Research was conducted in Copenhagen where, according to a number of experiments, the highest was recorded in the world the speed of the mobile Internet – 22,3 Mbit/sec.
Authors suggested participants to perform a task in a definite time during which they needed to see slowly being loaded video on the smartphone. During viewing activity of a brain, speed of movements of a brain, and also heartbeat frequency was registered.
the Group of scientists of the Medical center at Leiden university (Leiden University Medical Center) found out that viewing of horror films influences coagulability of blood.
It appeared p that "podvisaniye" of video caused increase in frequency of heartbeat at 38%, and the delay in loading for only 6 seconds provoked the same stressful reaction, as during the viewing of horror films or the solution of complex mathematical challenges. People were nervous much more, than standing in a long queue in a supermarket.
the Researchers making experiment, note that mobile operators need to pay more attention to a communication quality.