It's a common yet uncomfortable sensation when the heart beats rapidly for a second or two and then becomes normal. Whether ...

Does climbing a flight of stairs make you feel a sudden adrenaline rush? For some, this feeling quickly fades away. For others, a heart beating faster than usual can be worrying, leaving them ...

Tachycardia is the medical term for a heart rate over 100 beats per minute (BPM). It can be a sign of emotional distress or anxiety, anemia (low levels of iron in the blood), infections, dehydration, ...