What causes your heartbeat to rise?

There are many factors that can cause your heartbeat to rise, including:

* Physical activity: When you exercise, your body needs more oxygen and nutrients to fuel your muscles. This causes your heart to beat faster to pump more blood throughout your body.

* Emotional stress: When you're feeling stressed, your body releases hormones like adrenaline and cortisol. These hormones increase your heart rate and prepare your body for a fight-or-flight response.

* Caffeine and nicotine: Caffeine and nicotine are both stimulants that can cause your heart rate to increase.

* Medications: Some medications, such as decongestants and antidepressants, can cause your heart rate to rise.

* Medical conditions: Some medical conditions, such as dehydration, anemia, and thyroid problems, can cause your heart rate to increase.

If you're concerned about your heart rate, talk to your doctor. They can help you determine what's causing your heart rate to rise and recommend ways to manage it.