Word: bloodstream
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REPAIR KIT In a scientific first, researchers report that adult stem cells circulating in the bloodstream don't just regenerate the blood supply; they can also morph into skin, liver and intestinal tissue. What's the significance? The news suggests that the body may have a stash of universal repair cells, capable of being dispatched to wherever they are needed--and which someday may be used to treat disease without having to rely on the controversial stem cells taken from human embryos...
Many doctors would recommend chemotherapy to a woman whose tumor measures 2 cm across, even if it has shown no sign of spreading to the lymph nodes. Why? There is always the possibility that some cancer cells have already escaped to the rest of the body through the bloodstream...
...1970s, I was constantly admonished by church elders to keep my body strong and pure - free of alcohol, drugs and nicotine, and even of the caffeine in Coca-Cola. My spiritual health, according to church doctrine, was contingent on my physical health, as if my soul and my bloodstream were connected. These teachings were outlined in the Word of Wisdom, a crucial prophetic revelation given to Joseph Smith, the church's founder. Smith had a unique conception of God. Far from being some misty omniscient presence, God was a being of flesh, bone and hair who'd once been...
...first have to understand the complications. The simplest immune reaction--triggered by a mosquito bite, for example, or an allergen--is inflammation. When the insect bites, the immune system uses cellular troops that have had no special training. Cells called leukocytes, neutrophils and mast cells routinely cruise the bloodstream sniffing for an unfamiliar chemical signature. If they find it, they signal for reinforcements that swarm to kill the invader--the equivalent of an infantry attack...
...worst thing unspecific fear can do is to seep into the bloodstream so that all of life is poisoned, and even in those moments when nothing is going wrong--sweet moments with family, walks in the park--one feels that life is on the verge of a mad explosion. For the entirety of its existence, Israel has lived with the fear of terrorism, and learned to alchemize that fear into resolve...