When I was a lot younger, my sister once told me to not stand in front of the microwave, because I'd get cancer. Since then I've had an unfounded belief that if I get too close I'll die from some hideous disease in the future. Common sense tells me, "Jack, why would these things be on the market if they were that dangerous?", but I still can't avoid ducking when I walk past. This is a great shame because when I'm cooking porridge I can't tell if it's boiling over. Can someone tell me what's going on in microwaves so I can dispell this notion once and for all?