Heart Disorders
by Crystal
There are special cells in the heart that act as a natural pacemaker, sending electrical signals through their fibers to the heart muscle and regulating the heartbeat. An electrocardiogram reproduces these electrical patterns as a tracing. When there is a disturbance in any part of this conduction system, the heart may beat irregularly, or the rate may become either very slow or very fast. Irregular heartbeats can be life threatening in some cases, because the heart is unable to pump blood efficiently.
How stressed you become has much to do with your personality as well. For example, if you have a negative outlook on life, you will probably feel more stress than someone with a positive attitude. Some women like to find meaning in uncontrollable events, which gices them a sense of control. Others like the challenge of difficult situations.
Good things come from good stress, even though it feels stressful or bad in the short term. Stress challenges us to stretch ourselves beyond our capabilities, which is what makes us meet deadlines, "push the envelope", and invent creative solutions to our problems. Examples of good stress include challenging projects; positive life-changing events. Essentially, whenever a stressful event triggers emotional, intellectual, or spiritual growth, it is a good stress. It is often not the event as much as it is your response to the event that determines whether it is good or bad stress.
The death of a loved one can sometimes lead to personal growth because we may see something about ourselves we did not see before - new resilience, for example. So even a death can be a good stress, though we grieve and are sad in the short run.
An estimated 5 percent of adults, mostly women, have a condition known as mitral valve prolapse,which causes problems for only a small number of these individuals.
Increased heart rate, abnormal heart rhythm, shortness of breath, cough, fluid buildup in the body leading to swelling of the feet and ankles or abdomen, weakness, nad fatigue are some of the signs of heart failure. These vary, depending on the severity of the failure and the part of the heart affected. A variety of drugs can be prescribed to widen blood vessels, prevent the buildup of fluids, and strengthen heart contractions. In heart failure, the heart cannot pump enough blood to meet the body's needs. This may be due to heart muscle being weakened by conditions such as high blood pressure, myocardial infarction, or a mechanical failure in the valves. Heart failure does not mean that the heart stops pumping-that's called cardiac arrest-but rather that the heart is not working efficiently.
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