2007-07-06 02:15:40 · 8 answers · asked by christine 2 in Science & Mathematics ➔ Biology
Your heart will beat faster when there is less oxygen. A simple experiment is to go to a high altitude and try to run up a flight of steps. You will get "winded" unless you are used to the high altitude and you will notice your heart beating faster.
By the way, you can breathe 100% oxygen and although it isn't good for you and will cause lung damage with extended exposure, you won't burst into flames.
2007-07-06 04:17:49 · answer #1 · answered by N E 7 · 0⤊ 0⤋
both answers seem reasonable... if there's more oxygen it beats fast because it CAN, and then again, if there is less O2 it could still beat faster in order to transfer as much blood and therefore O2 to the body as possible! however, only the second is correct. when there's plenty of o2 the heart works normally, but when there is lack in the o2, the heart has a lot of work to do to complete its task, supplying the body with o2. it's the same case with extreme workout! your body needs more oxygene, your heart beats faster to use as much o2 as there is and at the same time your lungs work hard too to get more o2 from the air.
2007-07-06 02:29:51 · answer #2 · answered by elenik 3 · 0⤊ 0⤋
I believe your heart beats faster when there is less oxygen as the body pumps it to the lungs quicker to retrieve more oxygen as it senses a need.
2007-07-06 02:18:20 · answer #3 · answered by Anonymous · 0⤊ 0⤋
It is regulates to supply the amount of oxygen the body needs. So if the O is higher u should breath less. Never go above 23% as every thing will burn as if u put gasoline on it.
2007-07-06 02:41:30 · answer #4 · answered by JOHNNIE B 7 · 0⤊ 0⤋
Your heart beats less slowly, because less oxygen gets to your heart to start with, so your body trys to consume less oxygen, thats why when theres less Oxygen, you move more sluggishly.
2007-07-06 02:17:48 · answer #5 · answered by . 3 · 0⤊ 0⤋
Generally, no.
It beats faster when there's more carbon dioxide dissolved in the blood. This is why inhaling nitrous oxide or helium is dangerous. You don't know that you're oxygen-deprived until you pass out.
2007-07-06 09:35:22 · answer #6 · answered by Anonymous · 0⤊ 0⤋
less, beacause when your running, or under water, have you noticed your heart beats very fast, and you have to get the oxygen in as quickly as possible so you heart can regain its normal pace
2007-07-06 02:19:07 · answer #7 · answered by Anonymous · 0⤊ 0⤋
faster, then slower, then it stops
2007-07-06 02:18:42 · answer #8 · answered by Anonymous · 0⤊ 0⤋