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… 8 Factors that affect sleep Age Health Medication Alcohol The environment/working conditions Speaker's Notes As … deep, it is equivalent to losing 1 to 2 hours a night. Alcohol has a significant effect on the sleep cycle. More … half may disturb or fragment our sleep. Unfortunately, alcohol is the most commonly used sleep aid. A NASA study …
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… products produced by System Safety headquarters and regional offices. This package is primarily designed to … Can See in The Dark - TP 13817 NVFR Video - Black holes and Little Grey Cells - TP 13838(V) Aviation Safety Letter … Design-induced Spiral 2/1999 - Understanding Night VFR and the CFIT Risk Aviation Safety Vortex Articles: 5/2000 - …
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