Lots of environmental factors can increase our risk of getting certain diseases. The big thing with cancer is that many activities may increase your risk by 5 % lets say. If your starting risk was 0.00001 % chance, a 5 % increase would leave you with a risk of 0.0000101 % so it sounds scarier than it really is.
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Thankfully though, watching things doesn’t pose a huge threat itself!
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