How long does a heart flutter last?

Heart palpitations can last for mere moments if brought on by an unexpected shock, or for indefinite lengths of time depending on the underlying causes or lifestyle habits of the person, explains University of Iowa Health Care. Palpitations can feel like flutters, skipped beats or momentary ceasing of beats altogether.

The duration of a heart palpitation affliction varies greatly depending on many aspects of a person's life. Usually heart palpitations are not precursors for more serious health complications and often go away on their own, according to WebMD. Common causes of palpitations include consumption of stimulants such as caffeine, anxiety, vigorous physical activity and abnormal electrolyte levels.