How does radiation damage the cells?

How does radiation damage the cells?

Radiation works by damaging the genes (DNA) in cells. When radiation damages the genes of cancer cells, they can’t grow and divide any more. Over time, the cells die. This means radiation can be used to kill cancer cells and shrink tumors.

How does radiation damage and kill cells?

At high doses, radiation therapy kills cancer cells or slows their growth by damaging their DNA. Cancer cells whose DNA is damaged beyond repair stop dividing or die. When the damaged cells die, they are broken down and removed by the body. Radiation therapy does not kill cancer cells right away.

How does radiation destroy the body?

Radiation works by making small breaks in the DNA inside cells. These breaks keep cancer cells from growing and dividing and cause them to die. Nearby normal cells can also be affected by radiation, but most recover and go back to working the way they should.

Which part of the body is most sensitive to radiation?

Radiation in high doses can be dangerous no matter what, but some parts of the body are more sensitive than others. The most sensitive parts of the human body are the lymphoid organs, bone marrow, blood, testes, ovaries and intestines, according to the Collaboration for Nondestructive Testing[1].

What are the health effects of radiation?

Exposure to very high levels of radiation, such as being close to an atomic blast, can cause acute health effects such as skin burns and acute radiation syndrome (“radiation sickness”). It can also result in long-term health effects such as cancer and cardiovascular disease.

How does gamma radiation affect cells?

Gamma radiation is a form of nuclear radiation produced by certain radioactive elements as they decay. In particular, gamma radiation is ionizing radiation, meaning that it is sufficiently energetic to break bonds in genetic material, structural components of cells and other biological molecules.

What are the effects of radiation on DNA?

Effect of Ionizing Radiation. Ionizing radiation, the type of radiation released by radioactive materials, also contributes to DNA mutation. Like UVB, ionizing radiation causes direct DNA damage that lead to mutations. Exposure ionizing radiation leads to double-stranded breaks in DNA, so both parts of the DNA molecule are broken at the same spot.

How does radiation affect you?

Radiation damages the cells that make up the human body. Low levels of radiation are not dangerous, but medium levels can lead to sickness, headaches, vomiting and a fever. High levels can kill you by causing damage to your internal organs.