It is defined as a "chronic steady pattern comprising [ Non may also be comorbid with bipolar disorder, depression, and traumatic brain injury. In people with non, the body essentially insists that the length of a day and night is appreciably longer or, very rarely, shorter than 24 hours and refuses to adjust to the external light—dark cycle. This makes it impossible to sleep at normal times and also causes daily shifts in other aspects of the circadian rhythm such as peak time of alertness, body temperature minimum, metabolism and hormone secretion. Nonhour sleep—wake disorder causes a person's sleep—wake cycle to move around the clock every day, to a degree dependent on the length of the cycle, eventually returning to "normal" for one or two days before "going off" again. This is known as free-running sleep.
According to the American Heart Association, one in three U. The long term consequences of this childhood obesity epidemic are devastating — the AHA warns that today's children may be the first generation in U. Obesity is linked to rising U. Estimates vary, but the annual medical expenses related to obesity Americans are staggering. Indirect costs are far more difficult to calculate, because they include lost productivity from individuals taking leave from work, higher transportation costs, and higher insurance rates.
A lucid dream is a type of dream where the dreamer becomes aware that they are dreaming. During a lucid dream, the dreamer may gain some amount of control over the dream characters, narrative, and environment; however, this is not actually necessary for a dream to be described as lucid. Prominent figures from ancient to modern times have been fascinated by lucid dreams and have sought ways to better understand their causes and purpose. Many different theories have emerged as a result of scientific research on the subject and have even been shown in pop culture. Further developments in psychological research have pointed to ways in which this form of dreaming may be utilized as a form of sleep therapy.
A chronotype is the behavioral manifestation of underlying circadian rhythms of myriad physical processes. A person's chronotype is the propensity for the individual to sleep at a particular time during a hour period. Eveningness delayed sleep period and morningness advanced sleep period are the two extremes with most individuals having some flexibility in the timing of their sleep period.
I mean, teaching these things is so valuable, but no professor I have had since high school has ever taken the time to teach this simple concepts with examples as well, such as cutting the clutter, using more verbs, using the active voice instead of the passive voice, etc.