Bodies at rest: What happens when people sleep
By: Katie Lee
It's a universally accepted fact that everyone needs sleep. But why do we need sleep and what happens to our bodies as we are sleeping?There are two kinds of sleep states - the famous REM (rapid eye movement) state, also known as the dream...
Bodies at rest: What happens when people sleep
By: Molly Carter
What happens when we sleep? This questions has plagued scientists and confused the lay person alike. We know that we need sleep. We know that during sleep our body's cells repair themselves, growth hormones are released, our minds processes information, and we re-energize. We know...
What is the composition of blood?
By: Stacey Foxworthy
What many people are unaware of is that blood is considered a connective tissue. Tissues are defined as groups of cells that work together in order to carry out a designated function in a living organism. Blood consists of red blood cells (erythrocytes), white blood...
The function of the kidneys
By: Erich Rosenberger M.D.
The primary function of the kidney is not to act as a filter, as is commonly thought. The primary function of the kidney is to maintain proper balance of various substances such as water, sodium, potassium, magnesium, glucose, urea, bicarbonate and many other chemicals. The...
Function of the coronary arteries
By: Erich Rosenberger M.D.
The coronary arteries are responsible for supplying blood to the heart. Like any other organ in your body, you heart needs oxygen to stay alive. In fact, due to the fact that it never stops pumping, the oxygen demand for your heart is quite high...
By: Jack Winter
The nervous system: The nervous system works through symbolic interface of the environment. A phenomenon is perceived through an olfactory apparatus; eyes, ears, nose, mouth, and skin; which then is transformed into a response in the cerebrum. The cerebrum tells the rest of the body...
What is blood pressure?
By: Rita Waller
Although your knowledge of blood pressure (BP) is limited, you likely know that it is unhealthy for the pressure to be excessively high. BP is a measure of how hard the heart must work to deliver oxygen-rich arterial blood to all the cells of the...
Blood pressure: Classification, measurement, and maintenance
By: Jonte Rhodes
Blood pressure is basically a measurement of how hard our hearts have to work to pump blood around our bodies to keep us alive. High blood pressure can have a variety of causes, although there are several that are more prominent and consistent with the...
Why do our bowel movements come out in different colours ?
By: Erich Rosenberger M.D.
Ah yes, the color of your stools. This is easily one of the more important mysteries facing modern medicine today. Fortunately with the help of technology and thousands of the best and brightest scientists, we now have answers to this vital question. Not surprisingly, the...
Why do our bowel movements come out in different colours ?
By: Pat Lunsford
Bowel movements change colors, and the color of your stool can alert you to certain health problems. Stools vary widely in color, along with shape and size, but any change in your routine bowel movements over a period of more than two days warrants your...

 

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