Word: jetted
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...melatonin supplements really help people sleep? Millions of jet-lagged and sleep-deprived Americans--citing countless self-help articles--insist they do. But the scientific evidence has been slim. There's no question that the hormone helps the brain tell a.m. from p.m.--regulating sleep cycles and circadian timing--when it is produced naturally by the body at night. What was lacking was clear evidence that taking melatonin in supplement form had the same sleep-inducing effect...
...volunteers were kept on strict 20-hour cycles of sleep and wakefulness. The "forced desynchrony" was intended to throw the body's 24-hour clock out of whack, according to the study's lead author, James Wyatt, while mimicking the off-hour sleep-wake cycle that shift workers and jet-lagged travelers often struggle with. Every "night" of the study, the subjects were given either melatonin or a placebo 30 min. before bedtime...
...that doesn't mean the pills are interchangeable. Melatonin works on a completely different neurological system than the prescription drugs and, as the study suggests, won't help you at night or if you experience insomnia because of something other than jet lag or a graveyard shift...
...high energy prices are hurting workers, they are devastating a number of industries, most notably the airlines. Already buffeted by bankruptcies and labor disputes, the major carriers had made steady progress in shedding excess capacity and lowering labor costs. As a result, jets are fuller. But the till is still empty. Every dollar increase in the price of a barrel of oil translates into a $365 million immediate increase in fuel costs for the 11 major airlines. Even hyperefficient JetBlue has gone into the red. "High oil prices and continued losses will probably be a slow grind to liquidation...
...McFarlan said.Light said he was unsure of how long he will remain at the helm.Prior to joining the Business School faculty in 1970, Light earned a bachelor’s degree in engineering physics from Cornell University and worked in satellite guidance and systems planning at the Jet Propulsion Laboratory.—Staff writer Madeline W. Lissner can be reached at mlissner@fas.harvard.edu.—Staff writer Daniel J. T. Schuker can be reached at dschuker@fas.harvard.edu...