We ALL know it feels good, but why does it feel good?
2007-10-06 05:59:19 · 4 answers · asked by 9 Toes 4 in Science & Mathematics ➔ Other - Science
anybody who's reading this could you give a thumbs up or thumbs down on the answers you like........ Please????????
2007-10-08 07:27:31 · update #1
Because our body needs more blood
2007-10-06 06:05:58 · answer #1 · answered by Anonymous · 0⤊ 0⤋
Why we yawn--------------------
The simple truth is that even though humans have been yawning for possibly as long as they have existed, we have no clue as to why we do it. Maybe it serves some healthful purpose. It does cause us to draw in more air and our hearts to race faster than normal, but so does exercise. There's still much we don't understand about our own brains, so maybe yawning is triggered by some area of the brain we have yet to discover. We do know that yawning is not limited to man. Cats, dogs, even fish yawn, which leads us back to the idea that yawning is some form of communication.
why we stretch--------------------
basically to loosen up our muscles. if we never stretched our muscles we be sooo tight and tense we could hardly move them, but when we stretch we loosen them and it's like lifting a weight of our shoulders, and we all know that feels good.
2007-10-08 06:28:30 · answer #2 · answered by Anonymous · 0⤊ 0⤋
Both the above answers are wrong... It is natures way of becoming more alert (be a lert, the USA needs lerts) any, a study in England concluded that we yawn not to give us more oxygen, but as stimulant to our brain Look up yawning on Wiki. This report was about a month ago.
2007-10-06 07:11:34 · answer #3 · answered by Anonymous · 0⤊ 0⤋
We get more oxygen in to the brain and the stiff muscles become normal.
2007-10-06 06:03:28 · answer #4 · answered by Swamy 7 · 0⤊ 0⤋