Answer:
1. Stress Hormones can cause your blood pressure and heart rate to spike.
2. Shock and Fear Just like anxiety and stress can cause your heart rate to go up, so can shock or fear.
3. Alcohol Alcohol increases your heart rate.
4. A Sugar Rush
5. Diabetes
6. A Lack of Oxygen
7. Atrial Fibrillation (AFib)
8. Stimulants