Circadian variation of preferred environmental temperature and body temperature

Terai, Y.; Asayama, Masami; Ogawa, Tokuo; Sugenoya, Junichi; Miyagawa, Toshiaki

doi:10.1016/0306-4565(85)90019-1

Cited by 23 publications

(10 citation statements)

References 8 publications

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“…The following year, Carlisle noticed that rats exposed to the cold would press a lever for heat more vigorously during the phase of low body temperature than during the phase of high temperature (488). Research in many other laboratories over the years, using a variety of behavioral research techniques, has documented that higher ambient temperatures are preferred during the phase of low body temperature, and lower ambient temperatures are preferred during the phase of high body temperature, in rats (22,45,48,329,(489)(490)(491), mice (492), golden hamsters (93,490,493), Siberian hamsters (319), fat-tailed gerbils (118), degus (115), stripe-faced dunnarts (318), tree shrews (108), flying squirrels (108), lemurs (494), and humans (495)(496)(497)(498). Figure 7 illustrates the phase opposition between the rhythms of body temperature and of preferred ambient temperature in fat-tailed gerbils (Pachyuromys duprasi) tested in a temperature gradient.…”

Section: Regulatory Processmentioning

confidence: 99%

The circadian rhythm of body temperature

Refinetti¹

2010

Front Biosci

233

173

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This article reviews the literature on the circadian rhythm of body temperature. It starts with a description of the typical pattern of oscillation under standard laboratory conditions, with consideration being given to intra- and interspecies differences. It then addresses the influence of environmental factors (principally ambient temperature and food availability) and biological factors (including locomotor activity, maturation and aging, body size, and reproductive state). A discussion of the interplay of rhythmicity and homeostasis (including both regulatory and heat-exchange processes) is followed by concluding remarks.

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Section: Regulatory Processmentioning

confidence: 99%

The circadian rhythm of body temperature

Refinetti¹

2010

Front Biosci

233

173

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“…As highlighted in Figure 2, based on the results from four studies [18,19,73,77], there is a tendency to prefer higher temperatures in the early evening compared to other times of the day. However, the results from at least four other studies [12][13][14][15][16][17] seem to contradict these results.…”

Section: Overview Of the Resultsmentioning

confidence: 87%

“…Among the 15 reviewed experimental studies investigating diurnal variations in thermal perception, six found no significant differences in thermal perception [12][13][14][15][16][17]78] six observed significant differences [19,[71][72][73][74]77], two observed significant differences but were conducted only with male subjects [18,75] and the remaining one observed significant differences only for heat-acclimatized subjects [76]. In addition, two out of the six studies finding significant differences observed these differences only in male subjects [19,72].…”

Section: Overview Of the Resultsmentioning

confidence: 99%

“…Thermal comfort prescriptions given in international guidelines and standards do not take into consideration the "time of day" as a variable influencing acceptable indoor thermal conditions [10,11]. This assumption is primarily based on thermal comfort studies conducted in the 1970s and 1980s [12][13][14][15][16][17]. However, more recent evidence contradicts the findings from those early studies [18,19], suggesting that circadian variation plays a role in human thermal perception.…”

Section: Introductionmentioning

confidence: 99%

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Human thermal perception and time of day: A review

et al. 2021

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The circadian clock regulates diurnal variations in autonomic thermoregulatory processes such as core body temperature in humans. Thus, we might expect that similar daily fluctuations also characterize human thermal perception, the ultimate role of which is to drive thermoregulatory behaviors. In this paper, we explore this question by reviewing experimental and observational thermal comfort investigations which include the "time of day" variable. We found only 21 studies considering this factor, and not always as their primary analysis. Due to the paucity of studies and the lack of a specific focus on time-of-day effects, the results are difficult to compare and appear on the whole contradictory. However, we observe a tendency for individuals to prefer higher ambient temperatures in the early evening as compared to the rest of the day, a result in line with the physiological decrease of the core body temperature over the evening. By drawing from literature on the physiology of thermoregulation and circadian rhythms, we outline some potential explanations for the inconsistencies observed in the findings, including a potential major bias due to the intensity and spectrum of the selected light conditions, and provide recommendations for conducting future target studies in highly-controlled laboratory conditions. Such studies are strongly encouraged as confirmed variations of human thermal perceptions over the day would have enormous impact on building operations, thus on energy consumption and occupant comfort.

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“…Sleep itself is not homogenous, the conventional means of establishing this being to measure brain activity electroencephalographically and score the record as a cycling between different sleep stages (Rechtschaffen and Kales, 1968). The processes of thermorégulation seem to vary between the different sleep stages (Cabanac et al, 1976;Haskell et al, 1981;Marotte and Timbal, 1982;Muzetet al, 1984;Parmaggiani, 1992, Sagot et al, 1987Stephenson et al, 1984;Terai et al, 1985). Thus, based upon the responses to warm and cold stimuli in experiments performed in rats and humans, slow wave sleep (SWS) leads to a decreased "set point" of the thermoregulatory system.…”

Section: Introductionmentioning

confidence: 94%

Relationship between sleep stages and short‐term changes in rectal temperature in humans

Waterhouse

Minors

Åkerstedt

et al. 1995

Biological Rhythm Research

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Sixteen volunteers have been studied during 3-4 control nights and eight of these subjects again during four successive sleeps on 30-h "days". The experiments took place in a comfortable environment provided by an isolation chamber. Rectal temperature and the sleep EEG were measured throughout. The relationship between sleep stages, particularly SWS and REM sleep, and short-term changes in rectal temperature has been investigated during both protocols. Care was taken to correct for or remove those temperature changes that could be attributed to circadian rhythmicity or the effects of loss of masking due to being awake. Results showed that there was a small but significant effect of sleep stages, with SWS producing a fall and REM sleep a rise in rectal temperature after a delay of about 30-48 minutes. It is concluded that such spontaneous changes in sleeping subjects accord with the results of other studies which indicate that thermoregulatory reflexes to hot or cold stimuli alter in different sleep stages.

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Circadian variation of preferred environmental temperature and body temperature

Cited by 23 publications

References 8 publications

The circadian rhythm of body temperature

The circadian rhythm of body temperature

Human thermal perception and time of day: A review

Relationship between sleep stages and short‐term changes in rectal temperature in humans

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