Why does your heart beat faster when you hold your breath?

Answer 1

It is called the Mammalian Diving Reflex. It is because the pressure increases underwater. Many other things happen as well. Check out these websites Wikipedia and Buzzfeed

Answer 2

Well, your blood carries oxygen though your body constantly. That is one of it's main roles in your body. And since your body relies on that life giving oxygen to live which makes your blood very important. And when you breathe in, you take in oxygen so your blood gets it to give to your body. Ok, now to your question. When you hold your breath, you lack oxygen because your body is using it up all the time. So, your body pumps what remaining oxygen you have left as fast as possible to try to make up for your lost oxygen. I guess another reason could be that your body is stressed. But its more likely my first answer. Well, glad I could help!

Answer 3

it goes down because your calming down....and when you stop breathing to long you die so dont do it to long

Answer 4

Answer

The increased pressure in the lungs stimulates the vagus nerve, which slows the heart.

Answer 5

No, it decreases your heart rate because you don't get more oxygen so your heart can't give out more oxygen rich blood.

Answer 6

After you exercise often, your body will get used to the higher demand for oxygen. your heart will then have to do less work pumping blood to get air

Answer 7

By pumping faster, it can circulate the blood (which now will be carrying oxygen) faster to your body.

Answer 8

It is called the Mammalian Diving Reflex. It is because the pressure increases underwater. Many other things happen as well. Check out these websites Wikipedia and Buzzfeed