![Basic Knowledge on Radiation](https://www.r-info-miyagi.jp/site/wp-content/themes/miyagi/img/en_column-list-title2.png)
6.Effects on the human body
How does radiation affect the human body?
Now you know that we are exposed to radiation every day through environmental radiation.
In this article, we will look at how radiation affects the human body.
How does radiation affect the human body?
![博士](https://www.r-info-miyagi.jp/site/wp-content/themes/miyagi/img/about-cells-doctor.png)
![拡大した細胞](https://www.r-info-miyagi.jp/site/wp-content/themes/miyagi/img/about-cells.png)
The body is made up of cells.
Radiation damages the genes in the cells.
![傷ついた細胞](https://www.r-info-miyagi.jp/site/wp-content/themes/miyagi/img/injured-gene-6.png)
![傷ついた遺伝子](https://www.r-info-miyagi.jp/site/wp-content/themes/miyagi/img/injured-gene-1.png)
Damaged genes
Damaged genes
![傷ついた遺伝子](https://www.r-info-miyagi.jp/site/wp-content/themes/miyagi/img/injured-gene-1.png)
Mostly repaired.
![修復された遺伝子](https://www.r-info-miyagi.jp/site/wp-content/themes/miyagi/img/injured-gene-2.png)
Rarely, sometimes not repaired
![修復されない遺伝子](https://www.r-info-miyagi.jp/site/wp-content/themes/miyagi/img/injured-gene-6.png)
Most of the time, the cells die.
![細胞の死](https://www.r-info-miyagi.jp/site/wp-content/themes/miyagi/img/injured-gene-3.png)
Replaced by healthy cells.
![健康な細胞](https://www.r-info-miyagi.jp/site/wp-content/themes/miyagi/img/injured-gene-4.png)
Rarely, they become "cancer cells."
![がん細胞](https://www.r-info-miyagi.jp/site/wp-content/themes/miyagi/img/injured-gene-5.png)
Even with radiation.
![放射線を受けている人](https://www.r-info-miyagi.jp/site/wp-content/themes/miyagi/img/about-gene-doctor-1.png)
It does not always turn into cancer.
![健康な人](https://www.r-info-miyagi.jp/site/wp-content/themes/miyagi/img/about-gene-doctor-2.png)
In the body, cells are repeatedly damaged and repaired.
So radiation does not always result in cancer, because cells are repaired.
Here's the point!
When the body receives a lot of radiation, the genes in the cells are damaged.
Most of the damaged genes are repaired or replaced by new cells, so exposure to radiation does not always result in "cancer".