At In-N-Out, why do animal style fries cost more than double the price of regular fries? As of January 2012, regular fries are $1.50 and animal style fries are $3.40.
When your heartbeat speeds up for no apparent reason, however, that may be a sign of an abnormally rapid heartbeat â a condition called tachycardia (tachy means fast; cardia refers to the heart). Tachycardia can cause the heart to beat faster than 100 beats per minute, in some cases racing up to 400 beats per minute.Most Dangerous Rapid Heart Rhythms. Sudden rapid heartbeats originating in the ventricles are the most dangerous arrhythmias.ate If the heart rate is rapid, or greater than 100 beats a minute, it is considered a tachycardia. Alternatively, a slow heart rate, below 60 beats a minute, is known as a bradycardia.
1 Tachy-brady syndromeâ It is possible for the same person to have a slow heartbeat when the heart is in normal rhythm and periods of fast, irregular heartbeats (supraventricular tachycardias) at other times. 2  Sometimes, medications needed to control the fast heart rate can worsen the already slow heart rate.hat counts as an abnormally slow heartbeat for one person may not be the same for another. For example, a young, strong, healthy athlete may have a resting heart rate of 30-40 beats per minute, but may easily increase his heart rate to 180 beats per minute with exercise. This is normal.