Is this a reaction to something? Do we benefit from it? Why?
2007-03-13 08:35:23 · 6 answers · asked by Shonuff 1 in Science & Mathematics ➔ Biology
I mean yawn! LOL
2007-03-13 08:47:39 · update #1
ok..im guessing u mean yawn, and people yawn because when therye tired they tend to breathe more slowly and arent getting enough oxygen.
2007-03-13 08:45:25 · answer #1 · answered by Anonymous · 0⤊ 0⤋
People yawn because they are obviously tired. But In medicine, students are taught that the body doesn't get enough oxygen and the brain as a result sends signals to yawn to get more oxygen in the body.
2007-03-13 10:10:29 · answer #2 · answered by Anonymous · 0⤊ 0⤋
yarn or yawn? I yarn because it's fun and I can make stuff . I yawn because I'm tired and it actually helps keep me awake briefly. Kind of like natural caffiene
2007-03-13 08:38:46 · answer #3 · answered by nicoleblingy2003 4 · 0⤊ 0⤋
People yarn because they are cold and want to make blankets to stay warm.
2007-03-13 08:43:08 · answer #4 · answered by joe s 6 · 0⤊ 0⤋
a person yawns because tha persons brain is in need of oxygen!! duhhh
2007-03-13 14:19:51 · answer #5 · answered by lex 1 · 0⤊ 0⤋
I never yarn...
2007-03-13 08:45:40 · answer #6 · answered by Vinegar Taster 7 · 0⤊ 0⤋