Archive for April, 2012



Within the human body we have 60,000 miles of blood vessels. We have three types of cells in the blood, red, white, and platelets. Red blood cells transport oxygen throughout the body while white blood cells help protect us against infection. Platelets are involved in clotting. When you get a cut your vessels send out signals calling for for platelets and proteins to help in clotting. In addition, white blood cells also come to the rescue. A blood clot is a group of chemicals and cells that work together to stop the flow of blood in a small area. All More >


Finding Cancer: Can you hear the light?

Finding cancers early allows for more effective treatment with the least side effects, so finding better ways to detect cancers is an important part of the fight. A new technique may help us “hear” where cancers are, allowing doctors to diagnose cancers more precisely than is currently possible. The technique, which is called photoacoustic tomography, takes pictures of sound waves that come from tissues when laser light is shined on the tissue. This is possible because different parts of the body absorb different amounts of light. When light is absorbed, it raises the temperature of the tissue, and the temperature More >