J IS FOR JUNK LIGHT
Our tech devices are (supposedly) making our lives easier, but man, they’re messing with our melatonin. The blue light they (and LED lighting) emit suppresses the secretion of melatonin, a hormone that influences your circadian rhythm; having lower melatonin levels has been linked to cancer. Blue light—especially at night—suppresses melatonin twice as long as other types of light. Ever experienced eyestrain, headaches, or fatigue from sitting in front of a computer for hours or e-mailing on your phone? One solution is to switch energy-saving lighting to amber light bulbs. Or if that feels too Halloween, try installing a blue light filter on your device. Even better, avoid bright screens three hours before bed. You could find you’ll sleep better.