People who use their mobile phone during the lunch break feel more tired than those who make a short walk or read a few pages from a book or newspaper, according to a survey conducted in South Korea.
It is not known exactly what causes this phenomenon, but they speculate that it has to do with the fact that while using the cell phone, the brain is stimulated more, and the effort for the eyes is higher.
For the study, 425 volunteers were asked what they did during the lunch break. Half of them said that they used their smartphone, and others have discussed with a friend or have made a small walk. All said they were able to “disconnect” from work during the break. However, those who used the phone didn’t felt more rested after they returned to the Office. Many have used expressions such as “tired and emotional” or “dried up”.
Researchers at Korea Institute for Research and Behavioural Science say that the use of a mobile device during the breaks, for email or news, requires a mental effort higher than reading a book. Moreover, the effort for the eyes is higher, because the screen is smaller. They recommended that during the lunch breaks, people should not access smartphones and tablets.
Another recent study shows that people who listen to music on the phone while eating tend to consume a larger amount of food. Although it sounds bizarre, the noise we make when we chew decreases appetite.