The heart normally beats at a rate of about 60 to 100 beats per minute at rest. A rate faster than 100 beats a minute in an adult is called tachycardia. Most people experience transient rapid heartbeats, called sinus tachycardia, as a normal response to excitement,
The two main types of tachycardia are abnormal supraventricular tachycardias (which originate in the upper...
What we call normal rhythm is stimulated by a group of cells in the upper chamber of our heart called the atrium. This group of cells is in... Read more »
Full Question: Hello, I have been having sharp throbbing pain and stiffness in my neck and shoulders. This pain has been going on for a few... Read more »
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In this entry, I would like to comment on how the fact that asthma is such a common disease can in some cases lead to individuals being... Read more »
When discussing of the symptoms of rheumatoid arthritis, we often talk about pain, stiffness, swelling, and disability. We don’t often... Read more »