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When radiation deposits enough energy in organic tissue to cause ionization, this tends to break molecular bonds, and thus alter the molecular structure of the irradiated molecules. Less energetic radiation, such as visible light, only causes excitation, not ionization, which is usually dissipated as heat with relatively little chemical damage ...
Symptoms can start within an hour of exposure, and can last for several months. [ 1 ] [ 3 ] [ 5 ] Early symptoms are usually nausea, vomiting and loss of appetite. [ 1 ] In the following hours or weeks, initial symptoms may appear to improve, before the development of additional symptoms, after which either recovery or death follow.
Radiolysis of intracellular water by ionizing radiation creates peroxides, which are relatively stable precursors to hydroxyl radicals. 60%–70% of cellular DNA damage is caused by hydroxyl radicals, [3] yet hydroxyl radicals are so reactive that they can only diffuse one or two molecular diameters before reacting with cellular components.
A new Environmental Working Group study says there are contaminants in drinking water that could increase the risk of cancer.
Ionizing radiation causes DNA damage, and cancer can develop as a result, he explains. The bottom line. In May 2011, IARC classified radio-frequency electromagnetic fields (RF-EMF) ...
The basic cause of sporadic (non-familial) cancers is DNA damage and genomic instability. [1] [2] A minority of cancers are due to inherited genetic mutations. [3] Most cancers are related to environmental, lifestyle, or behavioral exposures. [4] Cancer is generally not contagious in humans, though it can be caused by oncoviruses and cancer ...
Cancer symptoms are changes in the body caused by the presence of cancer. They are usually caused by the effect of a cancer on the part of the body where it is growing, although the disease can cause more general symptoms such as weight loss or tiredness. There are more than 100 different types of cancer with a wide range of signs and symptoms ...
A new study suggests that eating red meat and sugar may contribute to colorectal cancer among young people. According to the researchers, there has been a significant surge in the diagnosis of ...
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