how does radiation affect human?

Source:  how does radiation affect human?    Tag:  radiation dose rem
Lemme begin by sayin' radiation is a "bad ass Dumbf*cksh*t." No i am not overstating, ya'll remember Hiroshima and Nagasaki aftermath ryte?
     Lhe unit used to measure radiation dosage is the rem (roentgen equivalent in man).  It represents the amount of radiation needed to produce a particular amount of damage to living tissue. The total dose of rems determines how much harm a person suffers.
     Although a dose of just 25 rems causes some detectable changes in blood, doses to near 100 rems usually have no immediate harmful effects. Doses above 100 rems cause the first signs of radiation sickness, including nausea, vomiting, headache and some loss of white blood cells.
     Doses of 300 rems or more cause temporary hair loss but also more significant internal harm, including damage to nerve cells and the cells that line the digestive tract. Severe loss of white blood cells, which are the body's main defense against infection, makes radiation victims highly vulnerable to disease.
     Radiation also reduces production of blood platelets, which aid blood clotting, so victims of radiation sickness are also vulnerable to hemorrhaging. Half of all people exposed to 450 rems die, and doses of 800 rems or more are always fatal. There is no effective treatment for sever exposure to radiation so death occurs within two to 14 days.
     For survivors, diseases such as leukemia (cancer of the blood), lung cancer, thyroid cancer, breast cancer, and cancers of other organs can appear due to the radiation received.
     Medical science has no way of telling the difference between people who have received fatal doses and will die despite all efforts and others who received less radiation and can be saved. Treatment for the ones that can be saved includes blood transfusions and bone-marrow transplants. Bone-marrow transplants rejuvenate the supply of white blood cells, which was affected by the radiation.
Footnote :: People who survived Hiroshima and Nagasaki, as you all know, had to go through traumatic experience not just while they were bombed but it started much later. People who rejoicing over their survival after that bombing would start bleeding through their gums weeks later :: This is not the first radiation hazard, decades ago Chernobyl Nuclear Power Plant in present day Ukraine, there was a radiation hazard of classified level 7 event on the International Nuclear Event Scale. Cities had to be evacuated. Many countries were affected, particularly Belarus (70% of radioactive fallout landed on Belarus). Oh'well lets just hope what's happening in Japan is the last one.

chernobyl radiation disaster. 1986


hiroshima and nagasaki. 1945