During ordinary non-dream sleep, people who are awakened report only vague and sketchy thoughts, and their experiences do not cohere into a continuous narrative.

During dream sleep, in contrast, people who are awakened report rich and detailed experiences in which events form a continuous progression, which may however be interrupted by bizarre or fantastic intrusions.

During REM sleep the body paralyzes itself as a protection mechanism to prevent the movements that occur in the dream from causing the physical body to move.

During this period, he was frequently unemployed and homeless, and sometimes had to sleep on the street, in theaters, or at friends ' houses.

During a full 8-hour night sleep, two hours of it is spent dreaming.

During REM sleep, the release of the neurotransmitters norepinephrine, serotonin and histamine is completely suppressed.

During the night, many external stimuli may bombard the senses, but the brain often interprets the stimulus and makes it a part of a dream to ensure continued sleep.

During a row over Sir Thomas More's opposition to Anne's queenship, Anne refuses to sleep with her husband unless More is put to death.

During a night in his conquest on Masyaf, Saladin woke-up from his sleep to find a figure leaving his tent.

During withdrawal REM sleep is typically exaggerated as part of a rebound effect.

During sleep, or during waking states when an animal is resting or otherwise not engaged with its surroundings, the hippocampal EEG shows a pattern of irregular slow waves, somewhat larger in amplitude than theta waves.

During the day, moreporks sleep in roosts.

During a bear's winter sleep state, the degree of metabolic depression is much less than that observed in smaller mammals and the bear's body temperature remains relatively stable ( depressed from to approximately ).

During the early stages, a combination of perceived pleasure acting as positive reinforcement and desire to respond to social peer pressure may offset the unpleasant symptoms of initial use, which typically include nausea and interrupted sleep patterns.

During his visit of 1617, James held court in the refurbished palace, but still preferred to sleep at Holyrood.

During the war with Rama, Kumbhakarna was awakened from his sleep.

During the fishing season he would hardly sleep, as he bought fish and ran them from the fishing grounds to Sitka.

During this period of sleep, high levels of acetylcholine in the hippocampus suppress feedback from the hippocampus to the neocortex, and lower levels of acetylcholine and norepinephrine in the neocortex encourage the spread of associational activity within neocortical areas without control from the hippocampus.

During the 2002 Moscow theater hostage crisis an unsuccessful attempt to use an unknown gas — thought to be fentanyl, or 3-methylfentanyl, for inducing sleep in the terrorists and hostages — caused the deaths of many hostages, some from choking on their vomit, others from an overdose, while many of the Chechen terrorists survived using gas masks and were able to fight the Russian forces ( still, the suicide bombers among the hostages lost consciousness, as projected ).

During the afternoon of December 23, after he had learned of the position of the British encampment, Andrew Jackson reportedly said, " By the Eternal they shall not sleep on our soil.

During sleep, ( and for some during waking hours while conscious attention is distracted ) subconscious processes can run unchecked, allowing bruxism to occur.

During a normal night of sleep, humans usually experience about four or five periods of REM sleep ; they are quite short at the beginning of the night and longer toward the end.

During REM, the activity of the brain's neurons is quite similar to that during waking hours ; for this reason, the REM-sleep stage may be called paradoxical sleep.

During a normal night of sleep the penis and clitoris may be erect for a total time of from one hour to as long as three and a half hours during REM.

During combat, he is injured in his back, fatally ( Chapter 6 ) — the resulting wound is large enough for Paul to see Haie's breathing lung when Himmelstoss carries him to safety.

During normal breathing, expiration is passive and no muscles are contracted ( the diaphragm relaxes ).

During severe illness, a tube may be placed in the throat ( a procedure known as a tracheostomy ) to enable breathing supported by a ventilator.

During torpor, the heart rate and rate of breathing are both slowed dramatically ( the heart rate to roughly 50 to 180 beats per minute ), reducing the need for food.

During passive breathing, air is inhaled with the diaphragm while exhalation occurs without any effort.

During the freeze the frog's breathing, blood flow, and heart beat cease.

During AECB, breathing becomes much more difficult because of further narrowing of the airways, in addition to increased secretion of mucus, which often is thicker than usual.

During the ensuing Battle of Zhuolu, the Yellow Emperor employs his tamed animals and Chi You darkens the sky by breathing out a thick fog.

During Kádár's interrogation, the ÁVH beat him, smeared him with mercury to prevent his skin pores from breathing, and had his questioner urinate into his pried-open mouth.

During the six days of docked operations, the joint Mir 24 and STS-86 crews transferred more than four tons of material from the SPACEHAB Double Module to Mir, including approximately of water, experiment hardware for International Space Station Risk Mitigation experiments to monitor the Mir for crew health and safety, a gyrodyne, batteries, three air pressurization units with breathing air, an attitude control computer and many other logistics items.

During the 1990s, when their concerts were at their most elaborately staged, a typical Aquabats performance would often include such theatrics as choreographed fight scenes, giant inflatable props, food fights, acrobatic stunts and varying degrees of pyrotechnics, ranging from shooting fireworks to The MC Bat Commander fire breathing.

During their brief Survivor Series meeting they exchanged their views on each other – while breathing heavily, a mannerism they shared, Snitsky told Heidenreich " I like ...

During this time, the heart rate and breathing rate drop notably.

" During the dinner, Chang inadvertently paraphrased Adolf Hitler with a comment about " breathing room ," which Kirk noted.

During this time his breathing apparatus was leaking and he returned to the submarine after completion of his task very exhausted.

During this time Valdemar is without pulse, heartbeat or perceptible breathing, his skin cold and pale.

During anaesthesia, there is interplay between two components: the patient and the anaesthesia administration device ( which is usually a breathing circuit and a ventilator ).

During breathing the diaphragm contracts and flattens, displacing the viscera and producing an outward movement of the upper abdominal wall ( epigastric region ).

During a typical performance, he stunned the audience by breathing smoke and fire or producing ribbons and a pole from his mouth.

During tonic immobility, the dorsal fin ( s ) straighten, and both breathing and muscle contractions become more steady and relaxed.

During hibernation, metabolic rate and body temperature fall dramatically, and the animal may cease breathing altogether for periods of up to an hour.

During intense hands, he focuses on a point on the table, keeps his breathing under control and tries not to give away any information.

During sitting meditation, the mind is calmed with traditional practices such as mindfulness of breathing ( anapanasati ).