The heart pumps blood, nutrients and oxygen throughout the body. The sinus node, a group of specialized cells in the top right chamber of the heart, generates electrical impulses that travel through the heart muscle causing it to contract. The...
Caffeine can make your heart flutter. Consuming a moderate amount of caffeine, less than 1600 milligrams daily, should not cause your heart to flutter unless you are sensitive to the drug. Caffeine affects your central nervous system, which could...
Each of the heart’s four valves--aortic, pulmonary, mitral and tricuspid--is susceptible to developing problems. Sometimes, the pathway through the valve may narrow, resulting in a condition called stenosis. Alternatively, the valve may fail...
The caffeine in a person's coffee, tea, soft drinks, dietary supplements or energy drinks may cause adverse physiological side effects. Caffeine can negatively impact a person's blood pressure, heartbeat and quality of sleep. It is also...
Super B-complex, a multiple B vitamin supplement produced by Nature Made, contains all eight of this group of vitamins. Vitamin B-1, or thiamine, makes up the largest portion of the supplement, providing 6,667 percent of the recommended daily...
Sodium nitrites and monosodium glutamate, or MSG, are both used as flavor enhancers or food preservatives, but each can be dangerous to your health in large quantities. Because of the potential for toxicity, the federal government regulates how...
If you or someone you know is experiencing symptoms of a heart attack, it is important to call 911 to get immediate emergency medical attention. There is a higher chance for survival if emergency medical attention is sought out sooner by calling...
Scary though they may be, palpitations are rarely threatening on their own. However, in some cases they are indicators of underlying problems. If you don't get enough exercise, heart palpitations might be your body trying to send you an important...
Anxiety is a normal reaction that helps people cope with circumstances that are threatening or dangerous in some way. In medical terms, "acute" refers to the rapid onset and/or severity of a condition. Anxiety is often classified as either acute...
Potassium is a crucial electrolyte responsible for the resting phase of muscles. On the other hand, bilirubin is the by-product of red blood cell breakdown found in bile. Under normal circumstances, these two substances would not be compared,...
Cardiac dilatation, or dilated cardiomyopathy, is a condition in which the chambers of the hearts are enlarged, the heart muscle is thin and weak, and the muscle fibers are often in disarray. According to The Merck Manuals Online Medical Library,...
There is a wide range of potential problems with your heart. The most common is high blood pressure, which typically affects many people as they get older. Other types of heart problems include congestive heart failure, arrhythmia and blocked...
Avocado is considered a healthy food that is high in vitamins and minerals, as well as other beneficial ingredients. In some sensitive individuals, however, it can cause an allergic reaction, such as feeling lightheaded. If the reaction occurs...
