Helping the Body Keep Up
When you run or play, your body works harder and needs more oxygen. Your muscles use up oxygen quickly to give you energy. To keep up, your heart starts beating faster so it can pump more oxygen-rich blood to your muscles. It’s like turning up the speed on a delivery truck so packages (oxygen) get where they need to go in time.
Cooling Down and Catching Breath
Along with pumping blood, your faster heartbeat helps your body get rid of extra heat and waste made while you’re active. That’s why your heart rate stays high for a little while even after you stop running. Then, once your body starts to rest, your heartbeat slows back down to normal.
FAQs
Q: Is it bad if my heart beats fast when I run?
A: No, that’s normal. It shows your heart is working well. If it ever feels painful or makes you dizzy, it’s good to rest and talk to an adult.
Q: Can your heart get stronger from running?
A: Yes! Just like other muscles, your heart gets stronger with regular exercise, which helps it pump more efficiently over time.
