It might be more physical than most people have ever realised. I'm sitting at a national chain restaurant last night. For some reason the staff tried to avoid waiting on us, before anyone would wait on us those little black boxes they put on the table to make our life easier had to be put facing me before anyone would wait on us. Five minutes later I got a huge headache. Since I don't believe in coincidences, you can guess what my brain was telling me, well it's really not a far leap from there anyways. Keep your eyes open like never before.