Attention, chocolate lovers: You may not be able to help yourselves. Swiss and British scientists have linked the widespread love of chocolate to a chemical "signature" that may be programmed into our metabolic systems.
Read more health news
Affected people or a healthcare provider can check their pulse and notice that it is greater than 100. An electrocardiogram (EKG) will show a pattern of normal heartbeats that are faster than 100 beats per minute.