what types of electromagnetic radiation can cause harm to living tissue?
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gamma raysA form of ionizing radiation that is made up of weightless packets of energy called photons. Gamma rays can pass completely through the human body; as they pass through, they can cause damage to tissue and DNA..
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alpha radiation is not as dangerous because it is unlikely to reach living cells inside the body. beta and gamma radiation are the most dangerous sources because they can penetrate the skin and damage the cells inside.
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There are three main reasons why people are concerned that cell phones (also known as “mobile” or “wireless” telephones) might have the potential to cause certain types of cancer or other health problems: Cell phones emit radiofrequency radiation (radio waves), a form of non-ionizing radiation, from their antennas.
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Millimeter-wave scanners use radio waves and produce no ionizing radiation. When we talk about radiation, we're usually referring to ionizing radiation, which has the energy and other properties capable of damaging DNA and leading to cancer. In very high doses, ionizing radiation can cause burns and even kill.
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We learned that non-ionizing radiation, such as radio waves, heat and light, is much less harmful because the rays carry much less energy. However, one kind of non-ionizing radiation, ultraviolet (UV) light from the sun, can cause mutations in DNA. It does this by causing pyrimidine dimers to form.
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Just a single high-energy photon of gamma rays can cause significant damage to a living cell. Once again, though, the Earth's atmosphere is there to protect us. The molecules in the atmosphere absorb the high-energy photons preventing any from reaching us on the ground.
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Medical Treatment Applications. Gamma rays ionize living tissue, causing cancer by producing free radicals. However, because gamma rays also kill bacteria and cancer cells, they have been used to kill certain types of cancer.
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Electromagnetic waves in medicine Changes in atoms and their nuclei can cause electromagnetic waves to be generated or absorbed. Gamma rays are produced by changes in the nucleus of an atom. ... High energy waves such as x-rays and gamma rays are transmitted through body tissues with very little absorption.
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['Radio waves.', 'Infra-red waves.', 'Microwaves.', 'None of the above.']
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EMFs influence metabolic processes in the human body and exert various biological effects on cells through a range of mechanisms. EMF disrupts the chemical structures of tissue since a high degree electromagnetic energy absorption can change the electric current in the body [23].
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['Uses ionising radiation can be harmful- cause cells to mutate and cause cancer.', 'Poor images of soft tissues.', 'Limit to the number of X-rays you can have in any given time frame due to the ionising radiation.']
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Radio waves, infrared rays, visible light, ultraviolet rays, X-rays, and gamma rays are all types of electromagnetic radiation.
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Starting with the most obviously dangerous, gamma rays are the highest frequency and most energetic form of light. They penetrate the human body and cause radiation poisoning after nuclear events like melt downs. Very harmful.
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Changes in atoms and their nuclei can cause electromagnetic waves to be generated or absorbed. Gamma rays are produced by changes in the nucleus of an atom. They are a form of nuclear radiation. High energy waves such as x-rays and gamma rays are transmitted through body tissues with very little absorption.
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Ultraviolet light has shorter wavelengths than visible light and has enough energy to kill bacteria. It can also harm the skin. X rays and gamma rays are the electromagnetic waves with the shortest wavelengths and highest frequencies. X rays are used in medicine and dentistry and to screen luggage at airports.
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Conclusion: Electromagnetic radiation may lead to the changes in physiological indices, genetic effects, and immune function and affect the health and immune function in operators. The adverse effects are increased as the working years increase.
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When the dose is high enough, ionizing radiation causes two types of harm to humans: direct tissue damage and cancer. Direct tissue damage happens when enough molecules are broken apart that the cells simply can no longer function. This can lead to radiation burns, radiation sickness, organ failure, and even death.