Perhaps you've seen a portable light box. Those glowing rectangles emit bright light intended to shift your body clock and help you adjust to a new time zone. Scientists agree: Light boxes work, says Dr. Zeitzer. The big problem is whether you want to sit in front of one for hours. It's not the most convenient therapy," he says. Getting outside is a more effective way of absorbing light. Even a gray, dreary morning offers more stimulating light rays than an artificial source.
Portable Blogjet!
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