If you don't like injections, then a smile can help.American scientists have found that if you smile in
Briefly about the work of the researchers tells Naked Science.Scientists from the University of California conducted an experimentThey were divided into two groups: people from the first group had to smile sincerely during the procedure, the second group had to fake a "fake" smile, and the third group had to not smile.Volunteers were injected with a saline solution using a needle, which was similar to the one usedAfter the shot, participants reported how much pain they felt.
As it turned out, regardless of the sincerity of the smile, people experienced less stress with it during the injection. The pain level was reduced by 40% (probably, we are talking about a subjective assessment).