You must be at least 17 years old to donate to the general blood supply, or 16 years old with parental/guardian consent, if allowed by state law. Learn more about the reasons for a lower age limit.
Other Causes of Elevated Heart Rate. Elevated heart rate when sick is actually your heartâs aid in order to quell the sickness. However, there can be other causes for elevated heart rate as well. Electrical signals produced and sent to the heart tissues are responsible for controlling the heart rate.
How fast can the human heart beat is a fascinating topic full of interesting facts. The human heart generally beats 60 to 80 times a minute, though anywhere between 60 and 100 beats per minute is considered normal, according to the Heart Rhythm Society.The heart beat increases during exercise, up to 160 to 180 beats per minute. If a heartbeat is fast but also irregular, it is diagnosed as atrial fibrillation which is the most common type of heart rhythm disorder in the US, according to the Heart Rhythm Society. 2  How fast the human heart can beat depends on age. 3  The heart generally beats faster in children than adults.