N for other purposes. Common sedatives include antihistamines, benzodiazepines, z-drugs, and herbal sedatives. viagra online Serotonin neurotransmitter involved in several important body functions such as memory, emotions, moods, sleep and arousal. Shift work sleep disorder disorder characterized by excessive sleepiness and caused by working hours that differ from the body's circadian cycle. Sleep the natural periodic suspension of consciousness during which the powers of the body are restored, characterized by lessened consciousness and slowed-down metabolism sleep apnea condition where the sleeper repeatedly stops breathing for 10 or more seconds during sleep. The greek word "apnea" literally means "without breath. do you need a prescription to buy viagra in australia " there are three types of apnea: obstructive, central, and mixed; of the three, obstructive is the most common. viagra tablets order online Can be dangerous as people with sleep apnea sometimes stop breathing hundreds of times during the night and often for a minute or longer. Sleep architecture nrem/rem stages and cycles of sleep and time spent in each stage. Also called sleep timing mechanism. One's sleep architecture changes with age. generic viagra canada Middle-aged and elderly people tend to spend less time in deeper sleep than younger people. effects viagra taken women Sleep cycle term used by scientists and sleep researchers to describe the pattern of sleep stages, especially the nrem-rem cycle sleep debt physiological state that results from recurrent sleep deprivation occurs over time. cheap viagra online When an individual does not experience sufficient restorative daily sleep required to maintain a sense of feeling rested and refreshed. viagra from canada Sleep deprivation acute or chronic lack of sufficient sleep. Sleep disorders general term applied to a broad range of illnesses, including dysfunctional sleep mechanisms, abnormalities in physiological functions during sleep, abnormalities of the biological clock, and sleep disturbances that are induced by factors extrinsic to the sleep process sleep disordered breathing general description for a group of disorders that produce pauses in breath in the sleeper or that reduce the amount of air the person is getting. Apnea is a common type. viagra online benditas Sleep efficiency percentage of time in bed spent sleeping sleep fragmentation sleep interruption due to frequent or sustained awakenings or early morning awakenings sleep hygiene conditions and practices that promote continuous and effective sleep. These include bedtime routines, regular bed and arise times. generic viagra without prescription And regularly getting enough sleep to avoid sleepiness during the day. For some people, can also refer to limiting alcoholic and caffeinated beverages prior to bedtime and using exercise, nutrition, and environmental factors so that they enhance, not disturb, restful sleep sleep hyperhidrosis or sleep hyperhydrosis profuse sweating during sleep sleep inertia fe. viagra 30 day cost