Sentence examples for habitual hours from inspiring English sources
In diurnal species, nocturnal melatonin secretion coincides with the habitual hours of sleep, in contrast to nocturnal animals which are at the peak of their activity while producing melatonin.
"We must be careful not to generalise such findings to, say, habitual six-hour sleepers who are happy with their sleep.
Models including habitual (past month) hours slept and bedtimes were tested.
Thirty seven healthy men and women were recruited, and participants were divided according to the habitual number of hours of sleep as follows: adequate sleepers (AS) (6 8 h sleep per night regularly) (N = 22) and short sleepers (SS) (less than 5 h sleep per night regularly) (N = 15).
And of course, the frontiers of science continue to march forward; scientists in the US are working towards what they suspect is a more precise (and possibly lower) answer to the question, reflecting our evolving 24 hour habitual patterns of activity.
On day 3, metyrapone was administered during normal waking hours until habitual sleep onset preceding night 3. Endocrine responses to metyrapone were measured in plasma obtained the morning following sleep recordings, the day before and after administration.
That translates to 3.78 hours of habitual behavior for men, and 3.51 hours for women during the course of a regular workday.
Subjects were admitted to the obstetrics ward in the evening and ate dinner, which was based on their habitual diet, at 1900 hours.
On the first crossover treatment day (Day 1), subjects arrived at the clinic 2 hours before habitual bedtime, and a pre-sleep assessment for the SOT was obtained.
As this study focused only on a comparison of normal and delayed phenotypes, participants who reported habitual bedtimes in daylight hours (e.g. 06:019 599:59) were excluded (n = 8).
Long and short sleep durations in contrast to 7 8 hours of habitual sleep are associated with higher mortality rates [ 12] and higher risk for coronary heart disease related events [ 13] and weight gain [ 14].
