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Because you are making the heart work faster,so it has to pump more blood around it.

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14y ago

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Why does you heart sometimes need to work harder?

Your heart may need to work harder when your body requires more oxygen. For instance, if you are exercising, your heart rate increases to keep up with the muscles' oxygen requirements.


Why do you oxygen?

We need oxygen to let your body work. You would die without oxygen because the chemistry of your body would stop working.to live


Why do you need oxygenation?

We need oxygen to let your body work. You would die without oxygen because the chemistry of your body would stop working.to live


What increases your breathing rate and why?

Because your starving your body for oxygen so it tries to take more in by increaseing your bpm. not good brain damage if starved of oxygen to long. Because your starving your body for oxygen so it tries to take more in by increaseing your bpm. not good brain damage if starved of oxygen to long.


Why do you breath very quickly after exercise?

Because when you work your muscles they need more oxygen, and to get more oxygen you need to breathe more often.


How does cilculatory work with respiratory system?

Your blood cells need oxygen to work. You also breathe in oxygen,right? So,when you breathein the oxygen,your heart beats faster. That produces more blood to flow through your body! I hope this helped!


Why do you breathe faster during inceased activity?

Because the more work you do, the more oxygen your body needs. As you do more work, your body uses more oxygen. And if you don't breathe faster, you could pass out. That's why it's important to breathe faster with more work.


How does digoxin affect your body?

Digoxin makes your body to work more in a given amount of oxygen or it make your heart use less oxygen for given amount of work.


Why plants need to realize carbon dioxide at night?

Because in day we require more oxygen so they respire oxygen and in night we don't need much oxygen because while sleeping our body parts don't have to work much! Its a life cycle of God (Allah)


Why do you breeth deep when you exercisise?

When someone exercises; them sweat, feel tired,... And it is because your heart has to do extra work because of your exercise. Your heart starts to pump more blood and oxygen to your organs. When the oxygen reserves in your body start to run out, you feel breethless. Because of that, you'll need breeth deep to take more oxygen in orden to recuperate to oxygen your body just lost.


Why do you need more oxygen at lower temperatures?

At lower temperatures, your body needs to work harder to maintain its core temperature, leading to increased oxygen consumption. The colder air also tends to be denser, resulting in less oxygen per breath compared to warmer temperatures. Thus, you may feel like you need more oxygen when breathing in colder conditions.


What is the function or work of the circulatory system?

the ciculatory system is where blood in our body is transported around the body giving our cell the oxygen they need.