F RE E!
+
MEDICAL EXAMINER recipe feature PAGE 7
TAKE HOME T HI S C O P WITH Y Y OU !
TM
HEALTH • MEDICINE • WELLNESS • HEALTH • MEDICINE • WELLNESS • HEALTH • MEDICINE • WELLNESS • HEALTH • MEDICINE • WELLNESS • HEALTH • MEDICINE • WELLNESS • HEALTH • MEDICINE • WELLNESS • HEALTH • MEDICINE • WELLNESS • HEALTH • MEDICINE • WELLNESS • HEALTH • MEDICINE • WELLNESS
AIKEN-AUGUSTA’S MOST SALUBRIOUS NEWSPAPER • FOUNDED IN 2006
WHY?
A
MARCH 18, 2016
Why do we yawn?
mazingly enough, scientist aren’t sure. There are plenty of theories, but no conclusive answers. One thing’s for sure: yawning is contagious. Researching this article caused many yawns. Writing this article is causing still more. And just seeing the pictures on this page and reading the words yawn, yawns and yawning over and over again, well, get ready to yawn. But why? Conduct a Man On The Street poll and most people would probably say being tired or sleepy is the #1 producer of yawns. Fair enough. But then why do we yawn when we aren’t really tired or sleepy? Having said that, the annual coming and going of Daylight Savings Time and its attendant sleep disruptions for us all will no doubt make this week peak yawning season. But we yawn during other weeks, too. Obviously boredom isn’t the reason either. After all, you’re currently reading a scintillating article, yet you may have already yawned since you started reading. Yawning and stretching at the same In other situations, however, time is known as pandiculation. The boredom can contribute to gentleman above is pandiculating. yawning. But again, we yawn when we aren’t bored, so that doesn’t help answer the why question. For that matter, dogs and cats who lie around doing nothing for 20 hours a day yawn. Are they bored? Fetuses in the womb have even been observed yawning. And as we have all seen (and if not, see the photo to the left), newborns do plenty of yawning. Some people yawn when they’re nervous, such as before an important meeting or presentation. Paratroopers have been noted to yawn in the final moments before jumping out of a plane, says an article in New Scientist. That observation puts yet another reason for yawning as a boost for alertness. One study measured blood gases and determined that higher than normal levels of carbon dioxide were observed just before subjects yawned. From this it was theorized that yawning helps expel carbon dioxide and enhance oxygen intake. Further studies of Please see WHY DO WE YAWN? page 3