Why are people so paranoid of everything?

I recently noticed a lot of concerns about exposure to cell phones and I was wondering, what is wrong with people these days? I remember way back when microwaves were invented, there were huge studies done about how if you were exposed to the microwave, your kids will end up with all kinds of birth defects and you will get sick from using it. They made such a big deal about it. Well, I have been using the microwave with NO side effects at all, and am a very satisfied happy user. I also don't believe that I am getting any damage from my TV, my monitor, and other electronics or products. All these items transmit such minute amount of rays that no damage is done at all. People should not be so afraid and scared and concerned about these things. If you want honest opinion, most of the diseases and conditions that happen to people will happen to them irrespectative of whether they modern devices or not. They are going to happen anyway or they will noy. I don't think it has anything to do with refusal to own a microwave or the fact that you watch 12 hours of tv a day or spend 8 hours on your cell phone.
On an ending note, I would like to say as in everything else in life, take precautions in whatever you do. Buy excellent quality branded products. Get the product repaired immediately if damaged so it will not leak dangerous materials.