Click to Skip Ad
Closing in...
  1. Early Prime Day Deals
    08:06 Deals

    10 incredible early Prime Day deals that are about to end at Amazon

  2. Amazon Deals
    10:32 Deals

    Today’s best deals: Free $15 Amazon credit, early Prime Day deals, first M1 iMac sale, $20 Blink cam, $600 projector for $300, more

  3. Best Prime Day Apple Deals
    12:00 Deals

    Amazon Prime Day 2021: Best Apple deals

  4. Best Prime Day TV Deals
    16:38 Deals

    Best Prime Day TV deals: Samsung, LG, Vizio, and more

  5. Best Prime Day Phone Deals
    18:12 Deals

    Best Prime Day phone deals: Apple iPhone, Samsung Galaxy and more




Scientists may have just solved one of life’s biggest mysteries: Why yawning is contagious

May 6th, 2014 at 4:08 PM
Why Do We Yawn

Life is filled with little mysteries, one of which is why we’re more likely to yawn when others around us . However, new research from the University of Vienna suggests that group yawning is actually a survival mechanism that has the side effect of cooling off our brains, which in turn makes us more alert and less likely to doze off.

The study, which was conducted in conjunction with researchers at the Nova Southeastern University and SUNY College at Oneonta in the United States, found that contagious yawning typically only occurs within certain temperature “windows” where the yawning would be an effective tool for cooling the brain.

In other words, the scientists discovered that people were less likely to yawn contagiously in either very hot or very cold temperatures because in those temperatures yawning would have very little impact on the brains temperature. In fact, the researchers pointed out that yawning excessively in the cold might even have “harmful consequences” because it might make the brain too cold.

The scientists say that their report “adds to accumulating research suggesting that the underlying mechanism for yawning, both spontaneous and contagious forms, is involved in regulating brain temperature,” which in turn could help “improve arousal and mental efficiency” and even “enhance overall group vigilance.”




Popular News