Driver sleepiness is a major cause of serious road crashes. Coffee is often used as an effective countermeasure to driver sleepiness. However, the caffeine levels in coffee are variable, whereas certain proprietary "functional energy drinks" (FEDs) contain known levels of caffeine (and other ingredients). We investigated the effectiveness of a well-known FED in reducing sleepiness in drivers. T...

Night sleepiness in two groups of student volunteers who stayed awake for one night was assessed at standardized time (22:00, 01:00, 04:00, 07:00) by the Stanford Sleepiness Scale (SSS). One group (N=21) chewed the chewing gum from midnight until the end of the experiment in the morning, while the other group (N=43) was not chewing at all. The results show that both groups at the initial assess...

IDENTIFICATION AND CHARACTERIZATION OF EXCESSIVE SLEEPINESS IS ONE OF THE MOST IMPORTANT ROLES FOR THE SLEEP CLINICIAN. Pathological sleepiness occurs in association with disorders and conditions such as narcolepsy, idiopathic hypersomnia, and sleep deprivation. It may occur due to the obstructive sleep apnea syndrome, periodic limb movement disorder, a variety of other medical and neurological...

This study examined the prevalence of excessive daytime sleepiness, as measured by the Epworth Sleepiness Scale (ESS), in a cohort of adult psychiatric patients. A total of 300 psychiatric outpatients and an additional 300 healthy controls completed the ESS. Excessive sleepiness was defined by a score of > or =10. The prevalence of excessive daytime sleepiness was higher in the psychiatric grou...

Sleepiness at workplace, the biological drive to sleep, has a highly negative impact on employees' working behavior in organizations. Recently, this phenomenon has attached more and more attention in the management filed; and it has attracted much attention of researchers from other fields, such as management and psychology. By reviewing and analyzing the previous studies, this paper clarifies ...

Excessive daytime sleepiness is one of the most common sleep-related patient symptoms, and it affects an estimated 20 percent of the population. Persons with excessive daytime sleepiness are at risk of motor vehicle and work-related incidents, and have poorer health than comparable adults. The most common causes of excessive daytime sleepiness are sleep deprivation, obstructive sleep apnea, and...

METHOD Retrospective review of medical records from patients with multiple sclerosis to collect data on severity of fatigue, disability, daytime sleepiness, and depression. From 912 medical records reviewed, 122 reported daytime sleepiness: 67% had relapsing remitting, 12% had primary progressive, and 21% had secondary progressive. RESULTS In 95% of the patients with relapsing remitting who c...

Excessive daytime sleepiness is a major symptom in obstructive sleep apnea syndrome (OSAS) and can be evaluated using both subjective and objective methods. The Epworth Sleepiness Scale (ESS) is a simple and validated questionnaire for assessing subjective daytime sleepiness in the context of sleep disorders. Although its subjective character may limit the accurate expression of daytime sleepin...

objective: an important factor in the prevention of industrial accidents is the employees’ ability to maintain their awareness of the work situation, understand the information it holds, and predict the development of the situations. in this study, we examined the role of work stress and sleepiness in predicting work situation awareness among workers.  methods: the present study was a cross-sec...

The present study was part of a larger 3-day, 2-night double-blind parallel group design in which 80 young adult men were divided into eight treatment groups to examine the effects of benzodiazepines and caffeine on nocturnal sleep and daytime sleepiness, performance, and mood. The present study was done to examine further the relationship among daytime sleepiness, performance, mood, and noctur...