Prolonged exposure to microwave?
Answers: Microwave ovens create radiation to cook your food, that's true.... but they wouldn't be allowed on the general open market if they didn't have the shielding they hold in them. The shielding protects individuals from most/all of the radiation. Yes, the less habitually you are near them when they are on, the better it will be for you overall.... but in that has never be any brain damage I've ever hear reported.
As far as wireless modems and wireless/cell phones, they work on an entirely different thing than microwave ovens... they shouldn't put out ample energy to cook anything.
The biggest entry is that if the wireless modem was giving you the headache, you should acquire a headache every time you use (or are near) a cell phone... they work on the same principle.
Theoretically, it's possible that it could be the chemicals that be used to clean the modem's circuit board that are giving you a headache, the smell of the plastic used to house the modem, or something else that you get at the same time. Have you still gotten matching headache when your windows are depart? Try it.
Heck, maybe your neighbor even get a new pet that's giving you an allergic response of a headache.... it could be coincidental.
As far as being reversible, only just not having the toxin/allergen around would be the first element (along with finding out what it is). Once the toxin/allergen that's cause the headache is gone, your body should have no problem repairing the hurt if any was cause. If it's just an allergic hostile response, it'll stop as soon as the allergen is removed... no harm done.
a microwave is radioactive so prolonged exposure to any kindly of radioactivity can cause damage to your body.
probably reversible with time as long as its not to serious
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