Summer, warm weather, dark room, and a boring lecture – a moment when anybody would like to yawn, but it is just not appropriate. Certainly, many of us have asked themselves: Why do we yawn in the first place? Numerous scientists have posed the same question, the result of which is a variety of different answers circulated among people. The most popular one says that yawning helps to oxygenate blood. As surprising as it may be, this theory was debunked over 30 years ago. Then, why do we yawn? Do other animals yawn in the same way we do? These questions can now be answered through a new study – the largest ever conducted on yawning – by an international team of scientists, including students from the group of Mgr. Pavel Němec, Ph.D., from the Department of Zoology at the Faculty of Science, Charles University.
Published Sep 06, 2021