What are the odds that modern technology and gadgets causes mass cancer?

So a lot of people I know (including myself) spend a lot of time on their iPhones, Xbox, TV, etc. The people who are currently in their 80s-90s never really had that much exposure to this kind of technology all the time. What are the odds that all these screens are causing radiation poisoning or something and that a lot of us aren't going to live very long? I'm sorry if this is a really stupid question I just really don't know lol…

We'll find out one day, probably in25 years time.

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Unless you are talking about modern as in from the 19th century on, when tobacco products went into much wider use. There are some things in modern society which increase or risk of cancer. Pollution and smoking are two biggies. Asbestos is also a factor, but that has been pretty much eliminated in the developed world.

People 100, 200 years ago lived much shorter lives and when the died, no one tried to find out. So if you died from liver cancer, you just died. The earliest medical texts, from the Greeks and Egyptians 1,000s of years ago document diseases that were most likely breast, bone and skin cancers. Early human remains have been found with signs of cancer. Cancer has been with humanity since before we were human.

Also cancer is a disease of aging, for the most part. As we live longer, we're more likely to develop cancer. When we were dying in our 50s and 60s, we had not lived long enough to develop some of the cancers we see now in our aging population.