Stretching after waking feels so pleasant for the same reason it does for cats, but not everyone enjoys the benefits The stretching you do after waking isn’t really stretching. It is a process ...

The other day I woke up, stretched, yawned, and wondered: Do all beasts, large and small, stretch and yawn? What about rhinos, hippos, ants, or even the wee little ...

Mark A. W. Andrews, associate professor of physiology and director of the Independent Study program at the Lake Erie College of Osteopathic Medicine, provides the following explanation. Although not ...

Robert Provine had this deliciously dangerous idea. The professor of psychology at the University of Maryland remembered the famous Monty Python sketch about a joke so funny that it killed anyone who ...

Do you know someone who spends a long time yawning? He may not be lazy he may just have a big, neuron-rich brain. A new study published this week in Biology Letters found the amount of time it takes ...

Is it true that we yawn when our brains are deprived of oxygen? Most of us can feel a yawn coming on. The muscles in our jaw begin to tighten, our nostrils might flare, and our eyes might tear up as ...