I told you at the time that...." He yawned
inwardly, without opening his mouth.
Most remarkably, a recent study at London University showed that the greatest incidence of contagious yawning occurs in dogs, with 72 per cent of the animals in one experiment yawning back when humans yawned
In a recent study, students were shown videos of people yawning while researchers counted how many times they yawned
e In a recent study, students were shown videos of people yawning nt were deos awning archers w d WHAT A YAWN J Boosts alertness while researchers counted how many times they yawned
They observed the dogs' responses when a person yawned
, gaped or did nothing.
Although age was the most important predictor of contagious yawning, only 8% of the variation in whether or not a participant yawned
was explained by their age.
Results showed that in Vienna people yawned
more in summer than in winter, whereas in Arizona people yawned
more in winter than in summer.
Nineteen chimps living in a research facility yawned
when they saw the same action from chimps that they lived with, researchers and staff they had seen before and people who were new to them.
The psychiatrist was surprised at the number of times he yawned
at the Out Patient Clinic review.