Why Is My Heart Beating So Fast? 10 Potential Reasons
Oct 15, 2025 · A fast heartbeat can be caused by emotions like stress or anxiety. Dehydration, or drinking caffeine or other stimulants, can make your heart beat fast. More serious conditions like …
What Heart Rate Is Too High? Chart, Max and Dangerous Rate
Feb 14, 2024 · Generally, for adults, a resting heart rate of more than 100 beats per minute (tachycardia) is considered as high. See the charts of the target heart rate zone and maximum heart …
Tachycardia (High Heart Rate): Symptoms & Treatment
Tachycardia is an abnormal heart rhythm that gives you a fast heart rate of over 100 beats per minute while resting.
Tachycardia - Symptoms and causes - Mayo Clinic
Dec 15, 2023 · Tachycardia (tak-ih-KAHR-dee-uh) is the medical term for a heart rate over 100 beats a minute. Many types of irregular heart rhythms, called arrhythmias, can cause tachycardia. A fast …
9 Signs Your Rapid Heartbeat Needs Immediate Care - Health
Jan 7, 2026 · A very high heart rate can also be a symptom of anemia, electrolyte imbalances, and hyperthyroidism (overactive thyroid gland), as well as cardiovascular conditions like heart failure, …
Reasons Why Your Resting Heart Rate Is So High - GoodRx
Feb 4, 2025 · Discover the reasons behind your high resting heart rate with expert insights from GoodRx. Find out how to manage and improve your heart health today.
Why Is My Resting Heart Rate So High? Common Causes Explained
Dec 30, 2024 · Discover common causes of a high resting heart rate, including stress, dehydration, and underlying health issues, and when to seek help.
Why Is My Resting Heart Rate So High? - eMedicineHealth
Causes of a high resting heart rate may include viruses, fever, low red blood cell count (anemia), overactive thyroid, anxiety or panic attacks, poor physical conditioning, dehydration, being in the …