Topic
Morning
About: Morning is a research topic. Over the lifetime, 6608 publications have been published within this topic receiving 177523 citations. The topic is also known as: morningtide.
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TL;DR: Although the questionnaire appears to be valid, further evaluation using a wider subject population is required, as sleep habits are an important déterminant of peak time there are other contibutory factors, and these appear to be partly covered by the questionnaire.
Abstract: An English language self-assessment Morningness-Eveningness questionnaire is presented and evaluated against individual differences in the circadian vatiation of oral temperature 48 subjects falling into Morning, Evening and Intermediate type categories regularly took their temperature Circadian peak time were identified from the smoothed temperature curves of each subject Results showed that Morning types and a significantly earlier peak time than Evening types and tended to have a higher daytime temperature and lower post peak temperature The Intermediate type had temperatures between those of the other groups Although no significant differences in sleep lengths were found between the three types, Morning types retired and arose significantly earlier than Evening types Whilst these time significatly correlated with peak time, the questionnaire showed a higher peak time correlation Although sleep habits are an important determinant of peak time there are other contibutory factors, and these appear to be partly covered by the questionnaire Although the questionnaire appears to be valid, further evaluation using a wider subject population is required
4,758 citations
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TL;DR: Early morning cortisol levels can be a reliable biological marker for the individual's adrenocortical activity when measured repeatedly with strict reference to the time of awakening, in contrast to single assessments at fixed times.
1,365 citations
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TL;DR: Blood-pressure was highest mid-morning and then fell progressively throughout the remainder of the day and began to rise again during the early hours of the morning before waking.
1,294 citations
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TL;DR: In older hypertensives, a higher morning BP surge is associated with stroke risk independently of ambulatory BP, nocturnal BP falls, and silent infarct, and reduction of the MS could be a new therapeutic target for preventing target organ damage and subsequent cardiovascular events in hypertensive patients.
Abstract: Background— Cardiovascular events occur most frequently in the morning hours. We prospectively studied the association between the morning blood pressure (BP) surge and stroke in elderly hypertensives. Methods and Results— We studied stroke prognosis in 519 older hypertensives in whom ambulatory BP monitoring was performed and silent cerebral infarct was assessed by brain MRI and who were followed up prospectively. The morning BP surge (MS) was calculated as follows: mean systolic BP during the 2 hours after awakening minus mean systolic BP during the 1 hour that included the lowest sleep BP. During an average duration of 41 months (range 1 to 68 months), 44 stroke events occurred. When the patients were divided into 2 groups according to MS, those in the top decile (MS group; MS ≥55 mm Hg, n=53) had a higher baseline prevalence of multiple infarcts (57% versus 33%, P=0.001) and a higher stroke incidence (19% versus 7.3%, P=0.004) during the follow-up period than the others (non-MS group; MS <55 mm Hg, n=...
1,182 citations