Just figured something out.

Maybe people are awake much different hours than others,

If you say BMR is 1800 calories, there has to be an avg time your awake to go off of.

If someone is awake 16 hours a day and someone awake for 13, theres a big difference there.

Your BMR is hardly affected. That is when you need to consider your activity level as in those extra 4 hours, you may be more active, thus burning more calories.

your BMR is what your metabolism would be (give or take a few %) if you layed in bed sleeping all day. i think just by being awake and watching television you burn more.

your BMR is what your metabolism would be (give or take a few %) if you layed in bed sleeping all day. i think just by being awake and watching television you burn more.
Not really. Spending time in front of the TV is one of the worst things you could ever do, energywise. Your brain is far less active during this activity than sleeping, and the brain is quite efficient when it comes to burning energy.

We're all skeptical of the "hottest news in medicine" stories, and rightly so, but this is at least appropriate.

New Study on Sleep and Obesity (http://seattletimes.nwsource.com/html/health/2002092835_mdig17.html)

In case you don't want to open it, it's a new study out of Columbia that correlates a lack of sleep with obesity. The article doesn't give much information, and the paper hasn't been presented yet, so don't think of it as truth, but, well, there it is, for what it's worth.

Of course, it doesn't begin to explain why this is so, but it does seem like common sense.

Still doesn't answer my question!


How many hours of sleeping in bed does this 1800 calories intake?

Example! If the number is 12 hours for 1800 calories, then if someone is up 13 hours then they burn 1800 + 150 (each hour os 150 more calories burned)


I believe if people can figureo ut their BMR threw how many hours they are up will bring them Much closer to figuring how to do what they are doing to get to their goal.

Example is maybe someone has 1800 bmr and needs 2500 calories to bulk a little bit in 12 hours, but doesn't know and is up 15 hours everyday which would be a loss of 450 calories making it a 2050 calorie bulk instead of a 2500, this would make bulking much harder, and vice versa for someone bulking and only being up 10 hours, gaining fat a little more than usual because of the hours.

What about someone cutting, if they are up longer than they think, it could put their calorie burn off track and maybe put them into starvation mode, or a plateu because they need more food! this is when eating before bed helps when its in this case, i would think, like cottage cheese or something, so the body doesnt go to bed feeling like its starving!

I think very weird about such things, eh?

Honestly, just don't think about it. It is something that noone here will be able to answer for you, nor does it even matter. Millions of people have lost/gained weight without considering how many extra calories you burn while asleep that I consider it a moot point. If sleeping did actually burn more calories, the amount would be so minute that it would not even matter.

We're all skeptical of the "hottest news in medicine" stories, and rightly so, but this is at least appropriate.

New Study on Sleep and Obesity (http://seattletimes.nwsource.com/html/health/2002092835_mdig17.html)

In case you don't want to open it, it's a new study out of Columbia that correlates a lack of sleep with obesity. The article doesn't give much information, and the paper hasn't been presented yet, so don't think of it as truth, but, well, there it is, for what it's worth.

Of course, it doesn't begin to explain why this is so, but it does seem like common sense.

I don't have time to look into the study, but it would make sense why most people would be heavier who sleep less. I know personally, when I am awake for an extra 3-6 hours or so, I have the tendency to eat more somewhere in those extra hours. For people that do this daily, the calories would add up. Then factor in less energy daily to perform activities, I could certainly see the possibility for putting on pounds.

Still doesn't answer my question!

I think the central disagreement here is in the question, not the answer. In asking how many more calories a person burns by staying awake for x amount of hours, you're assuming that activity determines metabolism. It is my opinion, and I think the opinion of others here, that it does not - that activity influences metabolism, but it doesn't fix it conclusively.

The calorie counters on gym equipment are misleading. Different people will spend different amounts of calories on different machines at the same time and intensity. The same person using the same machine two different times will not burn the same number of calories. The number will vary in accordance with a host of chaotic variables ranging from specific body chemistry, nutrition, and temperature (both internal and external) to form, stress level, and what you were doing before the workout for as long as several days. What you actually happen to be doing at a given time does not have a conclusive, deterministic effect on the number of calories you burn. It's a little probabilistic on the microlevel, like quantum physics.

Over time, big changes in lifestyle will have fairly predictable effects. This is far different from individual actions having deterministic effects, which is what is necessary to even to begin to answer your question.

Since we have to look at long-term effects to see trends, this means going hour to hour on this one is not going to help. What are the net effects over time?

There is some evidence to show that neglecting sleep, in the long run, results in a net increase in obesity, which comes from calorie surplus. Assuming they controlled for diet (which I really hoped they did, or Columbia doesn't deserve its reputation), this means these people burned fewer calories as a result of their choice not to sleep as much, even compensating for extra calories burned during the extra hours awake.

Since your body can erratically change the number of calories it burns at any given time for any reason or no reason, this should not be surprising. BMR is a very rough estimate, and BMR combined with an activity level modifier is an even rougher estimate.

So, as logical as it seems that staying awake longer burns more calories (the proverbial "midnight oil"), I posit that it actually burns fewer if the net effect over time is considered.

It's like depreciation or amortization in accounting - a lot of rookie managers don't like seeing the decay of their facilities or the aging of their equipment reflected on their balance sheets as a cost in dollars, and don't understand how it factors into everything. If everything still works fine, I didn't authorize anybody to pay for anything, we're selling more stuff at a higher price, and I have more cash on hand than I used to, how is it that my accountant can tell my board of directors that I'm losing money? Because just because you aren't paying in cash right now doesn't mean that the cost isn't there or that the cost won't be counted.

The proper study of your body is as grounded on long-term views of accrued costs as the study of any company is, maybe even more so. What you can say about yourself minute to minute is less important, because it all evens out in the end, and eventually you have to pay the piper.

:d_frown:


I don't think its a big question at all, nor is it hard.

It says my bmr is 1800. It says thats how many calories I burn in a day with no activity.

My question is how many hours is in this "day" they said.

10?

12?

14?

Does it mean I burn 1800 calories threw 24 hours? (Sleeping and awake added together?) Or just how many I get for being awake? Even so, I don't care how many I burn when I'm awake or when I'm sleeping, it says I burn 1800 in a day(x hours) on my minimum activity. I'm just looking for how many hours is X in their general guide.

You probally burn 80% of your calories in BRM while you are asleep. Your muscles recouperate at night. Sleep regulates body temperature, replinishes the immune system. and yeilds hormones that facilitate fat loss and muscle building. There is alot of calorie burning going on. Cardio and even a weight workout doesn't compare.

This might not satisfy you. So when you find a better answer check back and share it. from the net:

Basal Metabolic Rate is the mimimal caloric requirement needed to sustain life in a resting individual. This is the amount of energy your body would burn if you slept all day (24 hours). Let's look at some factors that affect BMR:

Age: In youth, the BMR is higher; age brings less lean body mass and slows the BMR.

Height: Tall, thin people have higher BMR's.

Growth: Children and pregnant women have higher BMR's.

Body Composition: The more lean tissue, the higher the BMR. The more fat tissue, the lower the BMR.

Fever: Fevers can raise the BMR.

Stress: Stress hormones can raise the BMR.

Environmental Temperature: Both the heat and cold raise the BMR.

Fasting/Starvation: Fasting/starvation hormones lower the BMR.

Malnutrition: Malnutrition lowers the BMR.

Thyroxin: The thyroid hormone thyroxin is a key BMR regulator; the more thyroxin produced, the higher the BMR.

You probally burn 80% of your calories in BRM while you are asleep. Your muscles recouperate at night. Sleep regulates body temperature, replinishes the immune system. and yeilds hormones that facilitate fat loss and muscle building. There is alot of calorie burning going on. Cardio and even a weight workout doesn't compare.

This might not satisfy you. So when you find a better answer check back and share it. from the net:

Basal Metabolic Rate is the mimimal caloric requirement needed to sustain life in a resting individual. This is the amount of energy your body would burn if you slept all day (24 hours). Let's look at some factors that affect BMR:

Age: In youth, the BMR is higher; age brings less lean body mass and slows the BMR.

Height: Tall, thin people have higher BMR's.

Growth: Children and pregnant women have higher BMR's.

Body Composition: The more lean tissue, the higher the BMR. The more fat tissue, the lower the BMR.

Fever: Fevers can raise the BMR.

Stress: Stress hormones can raise the BMR.

Environmental Temperature: Both the heat and cold raise the BMR.

Fasting/Starvation: Fasting/starvation hormones lower the BMR.

Malnutrition: Malnutrition lowers the BMR.

Thyroxin: The thyroid hormone thyroxin is a key BMR regulator; the more thyroxin produced, the higher the BMR.


Yes! that was what i was looking for! BMR = total calorie burn threw 24 hours of no activity.

Ah, okay, I didn't understand the question, then.

Never mind! Problem solved!

Ah, okay, I didn't understand the question, then.

Never mind! Problem solved!



now i'm sort of stuck.

this means 900 calories are burned when I sleep, so

900 calories are burned when I'm awake + the activity I do, so

how much does that make for the awake calorie burn? doubt its 1800 now

now i'm sort of stuck.

this means 900 calories are burned when I sleep, so

900 calories are burned when I'm awake + the activity I do, so

how much does that make for the awake calorie burn? doubt its 1800 now


Dude, seriously... stop worrying about such intricate details. It will only hurt you in the end. Walk up the stairs one extra time every day and you'll make up the difference.

now i'm sort of stuck.

this means 900 calories are burned when I sleep, so

900 calories are burned when I'm awake + the activity I do, so

how much does that make for the awake calorie burn? doubt its 1800 now

Your not getting it.
1800 calories you burn EVERY day regardless of whether you are asleep or awake. Anytime you AREN'T asleep, you burn more calories related to your activity. So, if you are awake and watching tv you burn a few extra calories (say 30), but if you are awake and jogging you burn a lot extra (say 1000). You add all that activity to the 1800 you burn just for being alive. i.e. if you were in a coma, you'd still be burning those 1800 a day.

-Allen

I'm gonna start a journal for all of my thoughts, this is way to interesting to me.

So, if you are awake and watching tv you burn a few extra calories (say 30),
Sleeping burns more energy than watching TV. See my previous post.

Your not getting it.
if you were in a coma, you'd still be burning those 1800 a day.

-Allen

Nice one! :tu:
Thank you, Thank you, Thank you!!!