Acute radiation syndrome happens when someone is exposed to too much radiation. This can happen if there is a nuclear accident, a bomb explosion, or a medical treatment that involves radiation. Radiation is like tiny invisible rays that can go inside the body and damage important things like cells and tissues.
When someone is exposed to too much radiation, their body feels like it is getting a really bad sunburn all over. This can make them feel very sick and tired, like they have the flu. They might have a headache, stomachache, or diarrhea. They might even start losing their hair and feel like they have a fever.
If someone has a very bad case of acute radiation syndrome, they might need to go to the hospital for treatment. Doctors might give them medicine to help with the symptoms, like pain and nausea. They might also give them blood transfusions or other treatments to help their body heal.
Acute radiation syndrome is very serious and can even be deadly if someone is exposed to too much radiation. That's why it's very important to stay away from places where there is a risk of radiation exposure and to always follow safety procedures if you work in a place with radiation.