Prompted by a study in the Journal of Psychosomatic Research about perceived sensitivity to electromagnetic fields, columnist Mark Morford of SFGate.com has penned a powerful commentary about why some people may suffer very real symptoms from seeming exposure to radio waves from Wi-Fi gateways and cell phones. He doesn’t dismiss either the severity of these symptoms or the fact that there are innumerable aspects of modern life that have been proven detrimental to human health, but emphasizes that we similarly cannot discount the power of suggestion or conviction.follow link
Go Back and Forth Fast in Preview
If you're reading a PDF in Apple's Preview software, and you follow a bookmark or an internal link to move around within the PDF, you can quickly return to where you were by pressing the keyboard shortcut Command-[ (that's Command-Left Bracket). Or, you can choose Go > Back.
The command works iteratively, so you can go back to just the previously viewed page or if you issue the command again, to the page before that, and so on. There's also an equivalent Go > Forward (Command-]).
- ExtraBITS for 3 June 2013 (03 Jun 13)
Mark Morford on the Nocebo Effect with Electromagnetic Fields