What does it mean when your just sitting there and your heart is racing?

Answer 1

You have to be more specific about what you are doing but your heart beats to pump blood and oxygen to all parts of your body the more physical the activity the more blood and oxygen the body needs

Answer 2

AnswerYou heart rate increases as the muscles in your body produce more carbon dioxide which is detected as an increase from the normal in the medulla which send a signal through the para sympathtic nevous system to the sino atrial node telling it to increase its waves of excitations, which inturn increases the waves to the atria ventricular node so all the muslces in the heart contract more frequent, by the Wilsonater
Your heart rate increases by the two autonomic nerves- two sets of chemicals called nerophinephrine and epinphrine
Heart rate speeds up to pump more oxygen around your body
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Your heart rate increases when cells are working hard and need more oxygen in order to do more cellular respiration. You breathe faster and your heart beats faster to deliver more oxygen to cells.

Answer 3

When you're just sitting there and your heart is racing it may be because you're excited about something or having an anxiety attack. If this happens and you can't figure out what's causing it, and it's not emotional, you should see a doctor.

Answer 4

A rapid heart rate is due to intense activities like running, playing, even walking etc. Or some times due to hypertension and abnormal body condition.