Exercise regularly, especially aerobic exercise
Build cardiovascular fitness gradually
Reduce stress with relaxation techniques
Get enough sleep consistently
Stay hydrated
Limit caffeine and other stimulants
Avoid nicotine
Maintain a healthy weight
Eat a balanced diet
Manage anxiety
Treat fever, pain, or illness promptly
Review medications with a healthcare professional
Monitor blood pressure and overall heart health
Practice slow, controlled breathing
Avoid overtraining
Seek medical evaluation if resting heart rate is persistently high