Why does the heart beat faster when you excercise?

Answer 1

The autonomic nervous system is then divided into the sympathetic division and parasympathetic division. The sympathetic nervous system responds to impending danger or stress, and is responsible for the increase of one's heartbeat and blood pressure, among other physiological changes, along with the sense of excitement he feels. The parasympathetic nervous system, on the other hand, is evident when a person is resting and feels relaxed, and is responsible for such things as the constriction of the pupil, the slowing of the heart, the dilation of the blood vessels, and the stimulation of the digestive and geniturinary systems.

Answer 2

The autonomic nervous system is divided into the sympathetic division and parasympathetic division. The sympathetic nervous system responds to impending danger and stress, along with the sense of excitement that person feels, and is responsible for the increase of one's heartbeat and blood pressure.

Answer 3

When you exercise your muscles need more oxygen to help it burn fat for fuel. the harder you work the more oxygen they need. your blood carries oxygen to the muscles. you heart beats faster to deliver oxygen faster to the muscles.

Answer 4

It's the body's "fight or flight" response. It pumps adrenaline out into the blood stream, and the adrenaline increases heart rate and blood pressure, dilates the pupils, turns down non-essential activity like the immune system and a few others.

Nature just wants to make sure that your body puts all it got into survival. Or, if it is sexual excitement, presumably the survival of the next generation.

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Answer 5

This is the flight or fight situation. Your body starts pumping adrenaline around ready for either a flight situation or a fight situation, even though it might not be a physical fight your body won't know that.

Answer 6

You you are excited, your sympathetic nervous system is stimulated. Adrenaline hormone is secreted. This hormone and direct stimulation of the heart is responsible for faster heart beats during excitation.

Answer 7

Your heart beats faster when you are excited or nervous because of the stimulation of the sympathetic nervous system.

Answer 8

During the fight or flight response, your sympathetic system is stimulated. This stimulation may increase your heart. This can happen with in few seconds.