Slopes on the trail seem less steep next to a friend. British and American researchers reached this conclusion after a study with subjects who were invited to climb a hill alone or with someone. The funny thing is that the longer the friendship lasted, the lower the slope perceived by the subjects at the end of the journey. "Even the visual perception of the physical world changes when a friend is around, " the authors commented in the Journal of Experimental Social Psychology .
In addition, it is also better to give yourself an injection or treat a wound in the presence of a friend . According to a study published a few years ago in the journal Psychosomatic Medicine , the perception of pain is reduced when a person whom we consider close to is physically present.
