Aficionados of 1970s and 1980s cartoons will have no trouble imagining the look of befuddlement upon our faces reminiscent of Scooby Doo’s when presented with a new mystery. Normally in an editorial, one should write a nice, succinct summary of the field providing the reader with a clear but concise understanding of where we are and where we are heading. However, it is just not possible in this...

background and objective: sleepiness is one of the important factors in motor vehicle accidents, especially in commercial drivers (cds). obstructive sleep apnea (osa) has an important role in developing sleepiness. the stop-bang questionnaire is used in medical examinations of commercial drivers in iran by law. this study aimed to investigate the judgment that drivers prefer not to report their...

Some older studies have found that 67 percent of American adults have some type of sleep problem, and 37 percent of Americans say daytime sleepiness interferes with daily activities. If you feel you have a sleep problem, discuss it with your physician, particularly for potentially serious problems like sleep apnea. If you think that your medications may be a factor, talk to your doctor before s...

A person sleeps a third of his or her life, which means that a person sleeps seven or eight hours a day. However, many people suffer from disturbed sleep. In this paper, we try to segment a video into shots using the method of Bhattacharyya Distance. After analyzing these segmented shots, we decide a movement during sleep. We also try to record all the breath from the beginning of the sleep to ...

background and objective: obstructive sleep apnea (osa) is the most common type of sleep-disordered breathing. multivariable apnea prediction (map) index consists of three questions about the frequency of osa symptoms plus body mass index (bmi), age and sex that categorizes the patients to low and high risk for osa using a formula. objective map index was calculated by discounting the questions...

Phase synchronization between two weakly coupled oscillators has been studied in chaotic systems for a long time. However, it is difficult to unambiguously detect such synchronization in experimental data from complex physiological systems. In this paper we review our study of phase synchronization between heartbeat and respiration in 150 healthy subjects during sleep using an automated procedu...