question about weight

[mikestarr]

So i stuffed my face last night. I made some home made burritos with meat, cheese, red and green peppers, onion, rice, hot sauce. It was real good...I had two right off the bat. Later i had another. Even later i ran out of the tortilla bread so i put more on some bread. I ate a lot and was stuffed. So for giggles i weighed myself at night and i was 191 and when i woke up i was 188. So my question is...where does that 3lbs go as you sleep?

[Jburn]

Originally Posted by mikestarr

So i stuffed my face last night. I made some home made burritos with meat, cheese, red and green peppers, onion, rice, hot sauce. It was real good...I had two right off the bat. Later i had another. Even later i ran out of the tortilla bread so i put more on some bread. I ate a lot and was stuffed. So for giggles i weighed myself at night and i was 191 and when i woke up i was 188. So my question is...where does that 3lbs go as you sleep?

the fat fairy came and left a bucket of chicken under your pillow

[Tip Top]

thermoregulation...your metabolism still works when you're asleep, albeit slower

[mc-]

let's see
8oz of urine weighs about half a pound....

mc

[Lambo2579]

Originally Posted by Tip Top

thermoregulation...your metabolism still works when you're asleep, albeit slower

This. Even sleeping burns calories. Not sure how it takes off 3 lbs without taking a big one, but it does.

[636 HunteR]

Your stomach is filled with acid....It literally disolves.

[redheadlaw7]

Originally Posted by Tip Top

thermoregulation...your metabolism still works when you're asleep, albeit slower

this^^^^
The Body's Themoregulation During Sleep

Human beings are endotherms - able to thermoregulate - , that is, maintain their body temperature. Body temperature is regulated through a balance of heat absorption, production and loss. Human temperature must be maintained within a fairly small range, up or down from the resting temperature of 98.6. Temperatures above 104.9 degrees Fahrenheit or below 92.3 degrees generally cause injury or death.

Humans have two zones to regulate, their core temperature and their shell temperature. The temperature of the abdominal, thoracic, and cranial cavities, which contain the vital organs, is called the core temperature. Core temperature is regulated by the brain. The shell temperature includes the temperature of the skin, subcutaneous tissues, and muscles, and it is more affected by external temperature. The core is able to conserve or release heat through the shell.

When the core temperature is too high, blood vessels in the skin dilate and heat is lost through their walls. Sweat is also produced, which evaporates and lowers temperature. If a human is too cold, the blood vessels constrict, conserving heat. Blood is preferentially shunted to the internal organs and away from the skin and peripheral structures like limbs.

The hypothalamus regulates body temperature between 96.8 and 100.4 degrees Fahrenheit over each 24 hour cycle. During the normal human circadian rhythm, sleep occurs when the core temperature is dropping. Sleep usually begins when the rate of temperature change and body heat loss is maximal. The average adult?s lowest temperature is at about 5 AM, or two hours before waking time.

Many mammals lose significant thermal regulatory capacity during sleep. Some animals like squirrels go into a torpor state during sleep, in which their body temperature dips well below the normal level for hours at a time. However, most research to date seems to indicate that humans do not have significant difficulty thermoregulating during sleep.

In one study, subjects were exposed to a range of temperatures during sleep. Based on animal models, the researchers expected REM sleep to cause difficulty in thermoregulation, but the results showed that there was very little disruption of thermoregulation during REM and other sleep stages. The subjects shivered slightly in cold temperatures during sleep stages 1 and 2. Although skin temperature increased as the subjects were exposed to higher temperatures, their core temperature readings did not change.

A recent Dutch study shows just how important temperature is when it comes to sleep quality and fragmentation. Fitting human subjects with thermosuits, the scientists were able to lower skin temperature less than a degree Centrigrade without affecting core body temperature. The changes were dramatic. People didn't wake up as much during the night and the percentage of the sleep spent in stages 3 and 4 (deep sleep) increased. The effects were most pronounced in the elderly and in people who suffered from insomnia. A 0.4 C decrease in skin temperature caused a decline in the probability of early morning waking from 0.58 to 0.04.

The same researchers found that people with narcolepsy tend to have higher skin temperature when asleep, and also when awake. They speculated that that hypocretin deficiency in narcolepsy affects skin-temperature regulation.

Other studies have showed different thermoregulatory responses of human subjects, depending on the sleep stage and temperature of the environment. In a different study of adult humans, thermoregulatory efficiency during REM sleep was fairly well maintained. However, thermoregulation was less efficient during Slow Wave Sleep (SWS). When subjected to different environmental temperatures, regulatory processes were affected. An overly warm or cool temperature disturbed sleep. REM sleep decreased, as did SWS to a lesser extent.

However, warmth beforehand improved sleep, especially SWS. In depressed patients, sleep is disturbed as well as body temperature rhythms. In these patients, a warm temperature before sleep might be helpful.

It does seem that humans maintain thermoregulation during sleep. However, it is possible that ambient temperatures before sleep may have an effect on sleep initiation and quality.

Here's an interesting fact: you don't sweat or shiver during REM sleep. Sleep researcher Jim Horne compares the REM non-thermal regulation period to that of normal functioning of babies, who neither sweat nor shiver even when awake. Babies control their body temperature, when it gets too cold, not by shivering but by use of so-called "brown fat" which is a type of adipose tissue well suited to generating heat. Adults have substantially less brown fat, adjusting for body weight, than babies do, but Horne thinks it is possible that adults use brown fat to keep from cooling too much during REM.

[mikestarr]

yeah i figured it was disolved a bit. I had no idea urine weighed so much, makes sense there.

[cavymeister]

Originally Posted by mikestarr

yeah i figured it was disolved a bit. I had no idea urine weighed so much, makes sense there.

1 fl oz of urine/water weighs approximately 1 oz

[mikestarr]

LOL wow its early...i could be fooled by the what weighs more a pound of urine or a pound of feathers.

[wave_length]

yes, urine and sweat.

[Captain554]

Originally Posted by redheadlaw7

this^^^^
The Body's Themoregulation During Sleep

Human beings are endotherms - able to thermoregulate - , that is, maintain their body temperature. Body temperature is regulated through a balance of heat absorption, production and loss. Human temperature must be maintained within a fairly small range, up or down from the resting temperature of 98.6. Temperatures above 104.9 degrees Fahrenheit or below 92.3 degrees generally cause injury or death.

Humans have two zones to regulate, their core temperature and their shell temperature. The temperature of the abdominal, thoracic, and cranial cavities, which contain the vital organs, is called the core temperature. Core temperature is regulated by the brain. The shell temperature includes the temperature of the skin, subcutaneous tissues, and muscles, and it is more affected by external temperature. The core is able to conserve or release heat through the shell.

When the core temperature is too high, blood vessels in the skin dilate and heat is lost through their walls. Sweat is also produced, which evaporates and lowers temperature. If a human is too cold, the blood vessels constrict, conserving heat. Blood is preferentially shunted to the internal organs and away from the skin and peripheral structures like limbs.

The hypothalamus regulates body temperature between 96.8 and 100.4 degrees Fahrenheit over each 24 hour cycle. During the normal human circadian rhythm, sleep occurs when the core temperature is dropping. Sleep usually begins when the rate of temperature change and body heat loss is maximal. The average adult?s lowest temperature is at about 5 AM, or two hours before waking time.

Many mammals lose significant thermal regulatory capacity during sleep. Some animals like squirrels go into a torpor state during sleep, in which their body temperature dips well below the normal level for hours at a time. However, most research to date seems to indicate that humans do not have significant difficulty thermoregulating during sleep.

In one study, subjects were exposed to a range of temperatures during sleep. Based on animal models, the researchers expected REM sleep to cause difficulty in thermoregulation, but the results showed that there was very little disruption of thermoregulation during REM and other sleep stages. The subjects shivered slightly in cold temperatures during sleep stages 1 and 2. Although skin temperature increased as the subjects were exposed to higher temperatures, their core temperature readings did not change.

A recent Dutch study shows just how important temperature is when it comes to sleep quality and fragmentation. Fitting human subjects with thermosuits, the scientists were able to lower skin temperature less than a degree Centrigrade without affecting core body temperature. The changes were dramatic. People didn't wake up as much during the night and the percentage of the sleep spent in stages 3 and 4 (deep sleep) increased. The effects were most pronounced in the elderly and in people who suffered from insomnia. A 0.4 C decrease in skin temperature caused a decline in the probability of early morning waking from 0.58 to 0.04.

The same researchers found that people with narcolepsy tend to have higher skin temperature when asleep, and also when awake. They speculated that that hypocretin deficiency in narcolepsy affects skin-temperature regulation.

Other studies have showed different thermoregulatory responses of human subjects, depending on the sleep stage and temperature of the environment. In a different study of adult humans, thermoregulatory efficiency during REM sleep was fairly well maintained. However, thermoregulation was less efficient during Slow Wave Sleep (SWS). When subjected to different environmental temperatures, regulatory processes were affected. An overly warm or cool temperature disturbed sleep. REM sleep decreased, as did SWS to a lesser extent.

However, warmth beforehand improved sleep, especially SWS. In depressed patients, sleep is disturbed as well as body temperature rhythms. In these patients, a warm temperature before sleep might be helpful.

It does seem that humans maintain thermoregulation during sleep. However, it is possible that ambient temperatures before sleep may have an effect on sleep initiation and quality.

Here's an interesting fact: you don't sweat or shiver during REM sleep. Sleep researcher Jim Horne compares the REM non-thermal regulation period to that of normal functioning of babies, who neither sweat nor shiver even when awake. Babies control their body temperature, when it gets too cold, not by shivering but by use of so-called "brown fat" which is a type of adipose tissue well suited to generating heat. Adults have substantially less brown fat, adjusting for body weight, than babies do, but Horne thinks it is possible that adults use brown fat to keep from cooling too much during REM.

[mc-]

Originally Posted by mikestarr

yeah i figured it was disolved a bit. I had no idea urine weighed so much, makes sense there.

a happy fact when needing to make weight and hitting the dandelion root quite hard

mc