What Happens If You're Exposed To Radiation?

What happens if you are exposed to radiation? Well, it depends first on the type of radiation you are exposed to. Ionized radiation, which is more dangerous, is emitted by x-rays and nuclear technologies, while non-ionized radiation, which is safer but not harmless, is emitted by the sun, fire, and electronics such as cell phones and wireless internet (via EMF Academy). Discussions of radiation exposure typically focus on the ionized variety, the danger of which depends on the amount that is emitted. Scientists measure ionized radiation in millisieverts (mSv), which is the international standard, or rem, which is commonly used in the United States, according to the Environmental Protection Agency.

The World Nuclear Association estimates that a dental x-ray emits just 0.01 mSv, which is a negligible amount. Even a full CT scan, which captures images of one's entire body, will expose an individual to just 10 mSv, another harmless figure. Those who work in the nuclear industry will experience some 20 mSv of radiation per year, which is considered an acceptable level. 100 mSv present a small risk of cancer, but immediate danger is not posed until 700 mSv. It is after the 700 mark that your health will be immediately and severely compromised. Sickness, hair loss, and other maladies will make life unlivable, but the real damage will be pernicious. 

The more one reads about radiation, the more terrifying its fierce toxicity becomes. Here is what happens when your body is exposed to radiation.

Thermal burns can be caused by both ionized and non-ionized radiation. Sunburn is a type of non-ionized thermal burn, and it affects millions of Americans. In fact, in 2015, 50% of adults aged 18-29 reported being sunburned in the last year, according to the National Health Interview Survey (per Medical News Today).

The symptoms of sunburn will be a matter of personal experience for many people. They include soreness, redness, and sometimes a warm, tight feeling. Particularly bad sunburn may lead to sun stroke/heat stroke, which can cause overheating, disorientation, sickness, and even death in extreme cases (via Saga).

However, the gravest thermal burns are caused by ionized radiation. Take the case of Harry Daghlian, a physicist who worked on the Manhattan Project, which produced the world's first atomic bombs. At just 24 years of age, Daghlian accidentally irradiated himself as he conducted a criticality test on a plutonium core (via Science Alert).The accident happened when Daghlian dropped a brick on top of the spherical core, creating a bright blue light and a wave of heat. Panicked, Daghlian grabbed the brick, which sent a tingling sensation up his arm. The young physicist had just exposed himself to around 5000 millisieverts of radiation — a fatal dose. As you can see in this graphic photo, Daghlian suffered horrendous burns to his hands. After 25 days of terrible sickness and pain, Daghlian was dead.

The American Cancer Society wrote that during Hiroshima and Nagasaki, babies exposed to radition in-utero had a lower risk of developing cancer than during childhood. That may be true of the atomic bombings in August 1945, but in the 21st century, the CDC states that unborn babies are particularly sensitive to radiation's carcinogenic properties.

Despite radiation's risk of cancer, the immediate concern for mothers ought to be birth defects, especially between the second and eighteenth weeks of pregnancy. According to Birth Defect Research for Children, radiation can mutate an unborn baby's DNA, causing a range of defects such as mental disability, shorter stature, and a reduction in size of the head and brain. 

Many terrible birth defects were linked to the Chernobyl disaster of 1986. In fact, a UNICEF study in 2010 (via CNN) estimated that over 20% of adolescents in Belarus, which shares a southern border with Ukraine, have shown signs of radiation poisoning, which have manifested in severe disabilities and chronic illnesses. Numerous institutions have been opened to care for those with these defects, such as the Vesnova Home for Invalid Children, which has some 170 children and teenagers in their care (via Business Insider). Common ailments include congenital heart defects, which may require open heart surgery in children as young as three months. More unusual is a condition that causes teenagers to grow no larger than a toddler or small child.

Cataracts have been diagnosed in those who have been exposed to radiation, namely victims of the Chernobyl disaster. According to the experts at Barrier Technlogies, the most common eye pathologies found in radiation victims are cortical cataracts and posterior subcapsular cataracts.

Damage is caused most often by scatter radiation, which is emitted during x-rays. If scatter radiation enters your eyes, it removes electrons from the atoms of your lens' cells, distorting them. These distortions build, creating the cloudy haze that will lead eventually to blindness.

If you are due to have an x-ray, don't worry. An occasional x-ray will not present a great risk of cataracts. For medical professionals, however, precautions are taken. If a technician cannot leave the room of an x-ray, they may use leaded eyewear in addition to whole body protection, such as x-ray aprons, thyroid shields, and specialist gloves. Furthermore, there is hope for those whose eyes have been damaged by radiation. According to UCI Health, cataract surgery has a 99% success rate and usually takes just minutes to complete, with surgeons clearing distorted vision with an artificial lens. 

Victims of radiation exposure, namely those affected by Hiroshima, Nagasaki and Chernobyl, are reported to have suffered a range of mental health issues. In the months and years following the detonation of Little Boy and Fat Man, many victims had nightmares and long term sleep deprivation, with some terrified by the radiation that had poisoned their bodies, comparing it to the parasite that eat away at them (via Asia-Pacific Leadership Network). 

Trauma, anxiety and depression continued in the ensuing decades, with many victims refusing to speak about what they had experienced. "My grandfather never ever talked about the bomb," said Dr. Kae Takase. Nagasaki Medical College has described this painful inhibition as "atomic-bomb numbness syndrome," which is marked by reticence and emotional numbness.

An extreme example of this is Tsuyo Kataoka, who was just 17 when the bomb hit Nagasaki, killing all eight members of her family. Somehow, Kataoka never spoke about this terrible loss. She also felt guilt, believing she had been punished for some sort of sin. Years later, after baring all to the pope, Kataoka became an advocate and public speaker.

Similar strife and dysfunction occurred after the Chernobyl disaster in 1986. The International Atomic Energy Agency reported that displaced peoples, blighted by poverty, PTSD, and fear of radiation, were experiencing higher levels of apathy, alcohol abuse, and suicide (via CNN). Many families were torn apart by this misery, with children placed in institutions that can cause more harm than good.