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Body Temperature and Sleep
Rock mentioned in another thread that body temperature is very important for sleep. Does body temperature change with each sleep stage, so much so that temperature can tell us what sleep stage we're in?
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Replies to This Discussion
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Permalink Reply by Duane McDade on
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I have never had a thermometer hooked up to a patient..........BUT!!! When someone has severe sleep apnea and they are overwieght they will overheat to wear they wake up in a pool of sweat. That would mean that stage 1-2 ones temp. may be higher.
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Permalink Reply by RockRpsgt on
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Not sure about the stages Mike. I know that the sleep cycle is actually innitiated at dusk. This is the point when our temperature begins to drop which begins melatonin release. The drop is between .5 and 2 degrees varying from person to person. At some point during the night the cycle is reversed causing cortisol( I think that is the right word. it's early) to be released. Might be a cool experiment to take your temp at bedtime and then immediately upon awakening to see the difference.
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Also I believe that in SWS(could be REM. It's early) your bodies thermometer is turned off. You won't react to hot or cold stimulus in this stage.
Rock Hinkle said:Not sure about the stages Mike. I know that the sleep cycle is actually innitiated at dusk. This is the point when our temperature begins to drop which begins melatonin release. The drop is between .5 and 2 degrees varying from person to person. At some point during the night the cycle is reversed causing cortisol( I think that is the right word. it's early) to be released. Might be a cool experiment to take your temp at bedtime and then immediately upon awakening to see the difference.
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Permalink Reply by BeeAsleep on
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What about all of us menopausal women that wake up in a pool of sweat at night when the temperature goes above freezing in the room? A whole different thread here. :>D
Rock Hinkle said:Not sure about the stages Mike. I know that the sleep cycle is actually innitiated at dusk. This is the point when our temperature begins to drop which begins melatonin release. The drop is between .5 and 2 degrees varying from person to person. At some point during the night the cycle is reversed causing cortisol( I think that is the right word. it's early) to be released. Might be a cool experiment to take your temp at bedtime and then immediately upon awakening to see the difference.
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Permalink Reply by Judy on
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That does it!! "I" want a "recording thermometer"! *wicked grin* This is a GOOD question. It really has my curiosity up.
Between Crohn's disease and COPD body temperature can get quite interesting. For instance, I'm on an immunosuppressant for the Crohn's disease. This tends to cause a lower temp reading. A COPD exacerbation can creep up on you causing a raise in your temperature. I've entered ER w/an otic temp of 97.4, had some darn ER doctor familiar w/immunosuppressants order a rectal temp (NOT my favorite doctor) w/in 15-20 minutes later and had a temp of 104.6 There's been times I would swear I was running a temp and been subtemp and times I've been freezing and been running a temp above 99+ Go figure.
And for real fun, have some doctor tell you to take and record your temperature 3 x a day every day for a week. Wants you to ONLY use a mercury thermometer. Take the temp, same time every day, first thing in the morning, etc. You can go thru a whole lotta mercury thermometers as you shake them down and they fly outta your fingers!!
It would seem tho, just thinking about it, that your temp would be higher when you lay down to go to sleep and gradually lower thru out the night so it would be lowest in your final stage 3-4 sleep with occasional rises in temp coinciding w/REM sleep maybe when your brain is most active.
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Well this goes along with Duane and Bee. For this theory to hold true arousals would make the temperature fluctuate. Heart rate and hormonal release would play a big part in this. It is only natural that the faster your heart beats the warmer it is going to get.
Judy I am putting Chrohn's and COPD temperature info on my list of research. At this rate that list will never end.
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Well, not all crohnies are taking an immunosuppressant tho, Rock. A good share of us are. Like Imuran (azathioprine) and 5MP (mercaptopurine).
And most w/COPD (and Crohn's) tend to have inflammation and COPDers are often on a steroidal inhalant and many crohnies are taking a steroid such as Entocort which tends to have less systemic side effects than prednisone.
Yeah, I can see arousals raising heart beat and heart beat and hormonal release raising temperature. Makes sense to my simple gray matter.
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Mike I can't find the post, but i believe that you were correct when you stated that REM might play a vital part in temperature control during sleep. I don't believ it to be the main function, but I do believe that REM along with cortisol release plays a part in temperature control. Also it only makes since that if you need a drop in temperature to start the sleep process that you would need an opposite reaction to wake up. REM sleep increases along with cortisol release in the final 3rd of the night. Also REM is usually a persons final sleep stage.
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Duane I would think that people who are extremely overweight would probably carry a higher temperature due to the fact that there body is exerting more energy just to function.
Duane McDade said:I have never had a thermometer hooked up to a patient..........BUT!!! When someone has severe sleep apnea and they are overwieght they will overheat to wear they wake up in a pool of sweat. That would mean that stage 1-2 ones temp. may be higher.
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