`` Wakefulness '' pills promise to keep future workers alert through the night . ` The drug is a combination of two chemicals that are already in use by many people, but which have never been tested on humans before. so users do n't feel jittery , just alert . One drug is already giving an edge to Air Force pilots on 40-hour missions .
`` Wakefulness '' pills promise to keep future workers alert through the night . They tweak sleep-related area in brain so users do n't feel jittery , just alert . One drug is already giving an edge to Air Force pilots on 40-hour missions .