Washington [US], May 4 (ANI): Young adults when sleep-deprived evaluate angry faces as less trustworthy and healthy-looking. Furthermore, neutral and fearful faces appear less attractive following sleep loss, suggests the findings of a new study from Uppsala University.
Washington DC [USA], Nov 29 (ANI): A study has recently revealed that domestic dogs lick faces not simply in response to food or uncertainty, but use it as a signal to communicate with humans in response to their angry faces.