Caffeine is consumed by over 80% of US adults. This review examines the effects caffeine
has on cognitive and physical function, since most real-world activities require complex …

For hundreds of years, mankind has been influencing its sleep and waking state through the
adenosinergic system. For~ 100 years now, systematic research has been performed, first …

Fatigue and workplace sleepiness are consequences of modern industrial society. Fatigue
is a complex biological phenomenon that occurs as a function of time awake, time-of-day …

The main consequence of insufficient sleep is sleepiness. While measures of sleep latency,
continuous encephalographical/electro‐oculographical (EEG/EOG) recording and …

The literature suggests that the following effects on behavior of adult humans may occur
when individuals consume moderate amounts of caffeine.(1) Caffeine increases alertness …

“A grave problem that developed in New Hampshire… now has all the motor-vehicle
commissioners of the eastern states in a wax. It's whether radios should be allowed on cars …

Falling asleep while driving accounts for a considerable proportion of vehicle accidents
under monotonous driving conditions. Many of these accidents are related to work--for …

The present study examines changes in a variety of oculomotoric variables as a function of
increasing sleepiness in 129 participants, who have been passed through a broad range of …

The transition from sleep to wake is marked by sleep inertia, a distinct state that is
measurably different from wakefulness and manifests as performance impairments and …

Napping is a cross‐cultural phenomenon which occurs across the lifespan. People vary
widely in the frequency with which they nap as well as the improvements in alertness and …