Heart rate: Lots of possibilities including but not limited to anemia, hyperthyroid, poor conditioning, hypotenuse, dehydration, excess catecholamines.........
Answered 4/28/2013
5.2k views
Tachycardia: If you are referring to resting heart rate, this is too high and can be caused by a variety of conditions ranging from anxiety to overactive thyroid, anemia (low blood count), heart rhythm disturbances, or endocrine abnormalities to name a few. Prolonged tachycardia (high heart rate) can damage the heart. Have your family doctor check it out!
Answered 7/3/2013
5.2k views
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