close
    what is a yawn

    0  Views: 369 Answers: 4 Posted: 14 years ago

    4 Answers

    It is what we do when we read a question like this
    There is plenty of speculation on this subject, but science hasn't came up with a definitive answer yet.
    I thought it was a lack of oxygen to the brain.
    I think it's a reaction caused by the cooling of the brain.


    Top contributors in Uncategorized category

     
    ROMOS
    Answers: 18061 / Questions: 154
    Karma: 1102K
     
    Colleen
    Answers: 47269 / Questions: 115
    Karma: 953K
     
    country bumpkin
    Answers: 11322 / Questions: 160
    Karma: 838K
     
    Benthere
    Answers: 2392 / Questions: 30
    Karma: 760K
    > Top contributors chart

    Unanswered Questions

    69vnearth
    Answers: 0 Views: 7 Rating: 0
    32winmoney
    Answers: 0 Views: 7 Rating: 0
    bv789com
    Answers: 0 Views: 13 Rating: 0
    adayroinet
    Answers: 0 Views: 15 Rating: 0
    nhaxetinhuong
    Answers: 0 Views: 16 Rating: 0
    gamesdecom
    Answers: 0 Views: 13 Rating: 0
    V9Bet
    Answers: 0 Views: 13 Rating: 0
    > More questions...
    497103
    questions
    733086
    answers
    833324
    users