While heart rates can vary from person to person, certain heart rates can be considered dangerous. Doctors say a dangerous heart rate for an adult is above 100 bpm at rest or less than 60 bpm at rest.

A heart rate faster than 100 BPM can be due to smoking, exercise, or serious cardiac conditions. What is a dangerous heart rate? Your heart rate refers to the number of times that your heart beats ...

The impotence drug Viagra could lead to blood clots and may be dangerous in those already at risk of a heart attack and stroke, it has emerged. A study suggests that Viagra can encourage blood ...

It may cause an arrhythmia – where the heart beats too fast or too slow – in turn raising the risk of heart failure or cardiac arrest. Research involving the University of Bristol found that ...

People with a certain heart valve abnormality are at increased risk of severe heart rhythm disorders, even after successful valve surgery. This is according to a new study from Karolinska ...