Eli5: How does radioactivity kill/mutate the body?

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Apologies if the tag is wrong!

From what I understand, the radiation doesn’t do squat untill it’s ionized. The way it was explained to me is that the Radiation is the knife, while the ionization is the hand weilding the knife.

So how does it affect the body? I know it does something to our DNA but what does it do specifically?

Bonus Question: What did scifi writers assume Gamma Ray’s would do to Bruce Banner to make him the Hulk, as opposed to what it does IRL and just… kill you.

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Anonymous 0 Comments

Your DNA is like the instructions for a LEGO set. Imagine if some of the parts in the instructions changed color or moved over by a stud. Your final Lego set would come out wrong.

Radiation alters your DNA, a little bit may cause a mutation, a lot will make the DNA useless not work anymore. Cells stop functioning, can’t reproduce, and end up dieing.

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