It was hard to believe when I scratched out the arithmetic on my weight gain in a notebook. It was 50 lbs over 20 years. It seems like a lot, but when we think about this in a more scientific light, what’s quite astonishing is that I didn’t gain MORE.
If you did gain more, then let me give you a little reassurance that you’re not the only one. Today we will start delving into the other side of thermodynamics to give you a more complete picture of my research over the last three years.
As most of you know by now, especially those who have reached out with data and emails, my life and study does not center on some malevolent plan to make you miserably “freeze your ass off.”
In fact, Thermogenex as I originally envisioned it over the last decade was about managing the total energy in and out of one’s body. I think the personal revelation was that the thermal environment counted for much more than I originally considered. The “thermal diet” as it is often touted by the press is sensational. It gets attention and “if it bleeds, it leads.” In truth, after I lost my weight through thermal loading AND caloric restriction/exercise, I did many more experiments with eating, particularly for nutrition and health.
I was more interested in why I GAINED the weight then how to lose it.
So let’s begin to explore that elusive calorie. We’ll look at it from a perspective of how it was orgininally developed – as a unit of energy of thermodynamics. This won’t require advance degrees or fancy math; EVERYONE can understand this and I think you’ll begin to look at food, exercise, and weight management in a completely new way.
Over time, you’ll see that what I’ve assembled will give you some incredible new tools to help on the input of energy, while the thermal loading will help increase the output side. Ultimately you have to output more than you input, i.e., create a caloric deficit, if you want to succeed.
Seven M&Ms a Day
As you read in my Fuel the Burn Guide, 5o lbs over 20 years works out to, on average, only 168 extra calories a week. That arithmetic is pretty straight forward: 3500 cal/lb x 50 lbs = 175,000 cal; 175,000 ÷ 20 years ÷ 52 weeks = 168 calories/week. That is an average of just SEVEN M&Ms a day in surplus calories – or SIXTEEN a week if you prefer peanut M&Ms like me.
Ultimately we have to run a caloric deficit to maintain progress with solid weight loss. From a thermodynamic perspective, nothing else matters; it’s a game of energy in and energy out and despite what anyone might tell you, no one is going to violate the laws of thermodynamics. One can eat food that is only partially digested, burn off some excess caloric intake with regular exercise, or even thermal load to create deficits, but in the end, calories are a measure of heat or energy and we have to create a caloric (heat) deficit.
So, what is a calorie? Where did come from? are all calories equal?
[GEEK ALERT – proceed at your own risk]
It turns out that a dietary calorie is actually a thermodynamic kilocalorie (1000 calories = 1 kilocalorie). I’ve seen a few stumble on this idea with “ice cube diet” calculations. So a dietary “calorie” (kilocalorie) is the energy required to raise one kilogram of water, 1 degree Celsius. It’s an abstract term and what’s interesting is that it’s a measure of heat energy. it’s conceptual and in reality you can’t taste, feel, touch or “count” calories and yet we all use them every single day while on a diet.
This is the problem. This is the discrepancy. Creating a situation of caloric deficit (burning more than you take in), is at the center every “diet” scheme. This is our struggle with losing weight and it is a fight with an invisible, esoteric villain. One of the best ways to understand a calorie is to look at how we measure it and that takes us to the calorimeter (of course). In much the same way as early philosophers described the “inner fire,” we will learn that with the right fuel and the right environment, weight loss will be relatively effortless and staving off weight gain, automatic.
Da Bomb…
An adiabatic calorimeter, or more commonly, a bomb calorimeter, is a device used to measure the “combustion energy” of substances. It’s a way at getting a handle on how much energy is stored within the molecules of a given substance. This heat energy, or calories, are equated to raising water 1 degree Celsius as we discussed earlier and that is exactly what scientists do.
I hate to admit it, but I can tell you that once long ago I spent an entire summer at NASA, nearly every day of one summer in my life, running one of these damn things. It was boring – akin to watching paint dry, but with an ever so slight possibility that something might blow up – hence the name, BOMB. It sounded like all of the glamour of rocket science, but with no fire and no spaceflight.
Here is how it works: a small quantity of what you want to measure is carefully weighed an placed in a thick, heavy, metal container. Next, we add the “fuse wire” used to ignite the material. Then we pressurize this with pure oxygen (sounds dangerous so far). This is placed in an insulated water bath that is very carefully temperature controlled and then you wait…and wait…and wait… when the water temperature is fairly stable you push the “ignite” button (true story: someone years before me labeled ours “Launch”).
Today, I’m sure that there are fancy graphs and software that spits out the answer, but this one was made in the early 70s and used just an accurate glass thermometer and you just stared at it through a tiny magnifying glass over and over, recording as the water the temperature rises.
While my job that summer was to determine how much carbon fiber was in filament wound composite rocket motor casings (sounds exciting – boring), occasionally, I tested french fries, corn, cricket/spiders (dead), and even M&Ms. It was the only thing fun about this otherwise boring job. Did I tell you I was bored?
Wilbur Olin Atwater
One of the realizations I had on about calories, was that the measured numbers didn’t matched what what is listed on the labels. That is when I first learned about the Atwater factors. While you may not know them by name, they are probably familiar to you if you have ever read any diet book. When you read that “protein” has 4 calories/gram, “Fat” has 9 calories/gram and “carbohydrate” has 4 calories/gram, you’ve just learned the work Wilbur Atwater performed in the mid to late nineteenth century.
That’s right, this is based on science that is well over one hundred years old. That is not to diminish it’s importance, but what we’ll learn in the next post is that his goals, over 100 years ago, are very much at the center of the slow carb diet in The 4-Hour Body today. Atwater was tackling what would later become the Type II diabetes epidemic. He had the solution to our obesity problems.
It was only 100 years before Atwater’s work that Edmund Burke wrote, “Those that don’t know history are destined to repeat it.” It seems from the size of our obesity problem, we don’t know history.
To finish up today’s post, just know that Atwater put people in large chambers, calorimeters, to measure the heat/respiration their body emitted from eating certain foods. Further, he accurately measured caloric content of food intake and waste fecal/urine so that he could analyze the entire thermodynamic picture of what happened when people ingested proteins, carbs, and fat.
It was brilliant work and he did hundreds of experiments. To do them correctly, he needed to account for the whole picture and waste heat was a critical part of the problem; this exactly the reason i assert adding thermal loading makes a difference in your weight loss progress.
Those interesting experiments I performed in an otherwise boring lab at NASA in the summer of 1986 were another piece of the puzzle that magically fell in place as I watched a documentary on Michael Phelps’ enormous appetite. All food is not created equally and as we’ll find out there are some lessons that can make the diet-exercise-thermal loading trifecta work in your favor.
What do M&Ms, calorimeters and century-old work of a scientist have to do with your success? Way more than you might think. These results can be blended into an optimal formula to lose weight at the fastest rate possible. Ultimately it is about maintaing the caloric deficit while flooding the body with nutrient-rich food – managing the input. At the same time, we’ll need to exercise to create a deficit on the output side and add thermal loads to maximize the effect.
So, next week, we’ll dig into the calorie and you’ll finally why some of what SEEMS like simple substitutions based on product labels are not always the correct choice.
[special note to fitness bloggers]
Thanks for dropping in and following this site. I do appreciate you are spreading the word, sometimes word for word. I ask you one simple favor. I know you have your group of people following you and we all like to dazzle people and get them excited about new ideas and concepts, but if this site is your source of “inspiration” can you please just say so and provide a link? It’s not much to ask and based on the feedback of some of the membership we share, it would probably make everyone look better… Thanks!









Even though a calorie is a calorie, they really don’t react the same way in the body. By eating proteins and fat (no carbs), it’s practically impossible to gain weight because insulin stores energy as fat. Or the gain is at least a LOT less than with eating carbs. Also protein and fat keep the hunger away for a longer time.
Also calories in != calories out, because the human body is not just a simple machine. When low carbing things like futile cycling burn energy. Numerous overfeeding studies have shown that when overfed, people gain a lot less than they should based on calories alone. And after the overfeeding they lose the gained weight quite quickly.
Good points. We’ll learn this is what everyone says, but I think the results are happening in a different way.
Also, as I allude to in this post, the “macronuetrient” dance does not take into account micronuetrients and health. More coming on that too!
Thanks for the comments.
Ray
I feel so good knowing that my guilty pleasure of eating peanut M&Ms in my daily ice bath, is aiding in my healthy lifestyle ;).
Thanks Ray! excellent post man.
my thermal load in reality typically looks like what you are recommending:
cold showers 8-10 mins
sleeping without covers (a.k.a. annoying the wife)
occasional pre-dawn swim (freakin’ cold pool water)
it’s truly helping 🙂
thanks again dude
I’m with you on M&Ms, but to give credit where credit’s due, those are all Tim’s methods. I’m working on my own now and you guys will be the first to hear about it.
Ray
(remembers when there were no blue M&Ms)
Another interesting article. I love the thought of those evil m+m’s adding up over time. I guess if you mind the cents, the dollars take care of themselves?
I’ve been reading lately about the thermal effect of food, and how proteins, fats, carbohydrates and alcohol all require different amounts of energy to digest, with proteins being the highest at aroudn 20% of the calories in the proteins. That would be an interesting subject to maybe look more into.
I do have one question with regards to the cool showers. I find that I was showering right after a pretty intense heavy weight work out when my body was trying to dump a lot of excess heat, that I could comfortably go much colder in the shower than when I had not worked out. But I was wondering if delaying the shower to after I had already cooled down would have a greater overall thermal effect, i.e. am I wasting that thermal effect by just cooling off my already high metabolism at that point?
More on this in part 2, 3 and maybe..4. Expect more frequent posts for the next week or two. Mine are already too long, so I’ve got to break this up.
I’m going to give you the REAL thermodynamic story on food. Not quite as glamorous, but it will be useful. In particular I’m going to show you why one type of calorie kills progress.
On your question. No, not as effective immediately after a workout, but not worthless either. Think about it this way. Under normal conditions cold exposure kicks in shivering and the waste heat from this involuntary muscle movement uses calories.
Workouts also generate lots of waste heat and that is captured in the cal/HR number on the exercise (roughly). So if you want, exercise cool – should be more efficient and you get more effort. Also cool down with air, fan, or even a cool, not cold shower. Once Completely cool, you can grab an ice bath or cold shower and you’ll get a little shivering feedback – a sure sign your body is generating heat via muscle movement.
Also, you might find that after cooling down to point of cessation of sweat, you can take a quick hot water/shower dip and then go cool and get a response. Body understands difference, not exact numbers.
Ray
I’m going to have to agree with Jukka on this one. I’ve just spent a significant amount of time reading “Good Calories, Bad Calories” by Gary Taubes and there is literally 100 years of science describing in detail what insulin does with the food coming into your body. In GCBC, if you’re so inclined, and I believe most people here probably are, there are literally 125 pages of references and studies that Gary referred to in the book. Think about it this way. The human organism has one over-riding drive (no, not that one) and that is survival. Everything, and I do mean everything your body does with the nutrients you intake is all about survival. Even though that’s not really a concern now a days, when it was was not that long ago in evolutionary thinking. The science is quite frankly overwhelming.
This does not diminish the thermogenix materials. To me it’s a piece of the puzzle. If you don’t want to read a mammoth 600+ page book, check out “Why We Get Fat” by the same author which is more for the laymen to read. I promise you, if you just follow the science you will be blown away.
read it…sometimes the “simplified” explanation leads one to a more complex picture than it really is. What I will put forward will not contradict, but is a far more simple thermodynamic explanation for the same thing.
don’t think I “disagree,” but in science innovation often comes in a more simple explanation for the same set of data. I think that Atwater’s explanation – a man that did litterally hundreds of experiments, is very good. That is not to say that Taubes (whom I;ve met) is wrong, just that this can be distilled down to a much simpler formula. We’ll learn just what is meant by “proteins take more energy to digest,” but it will go further than that and eventually translate into the nature of food itself. You’ll see that slow carb has it’s roots here.
a calorie is a calorie, but digestibility was shown not to be equal.
Ray
Ray
Fascinating reading Ray…can’t wait to read what’s coming down the line.
Hi Ray,
This is off-topic for this thread; but I cannot for the life of me get the ebook to open. It keeps giving me an error saying it’s damaged/corrupted. I’m running Acrobat 10 reader, the latest version and I still get the error. Tried opening with Google Docs too and failed. Any suggestions? Love the site.
Best,
Austin
sorry Austin
it is due to your acrobat plugin being dated…just right click the link and download to the desktop and open from there…should work fine. If not, get a later pdf viewer. For smaller size, I threw out v7 of acrobat and earlier.
Let me know.
Ray
My first day on your blog and my first day reading the 4 hour body. I am loving it. Great stuff!!! Looking forward to try out the cold showers and ice packs and sleep
I have been taking 10 minute cold showers very first thing in the morning. I am also walking a series of hills where I live (Calif) for exercise and just joined a spa that has a cold dip where the water is 4ft deep and 52 degrees. …I have a body type where I developed a lot of flab around the chest area. It occured to me while standing in the cold dip,…if I keep my chest submerged in the cold dip would it accelerate fat burning in that area?
Tiger, I would find it difficult for you to be able to do spot reduction by submerging your torso further. What it may do is decrease your core temperature, thus causing shivering, thereby burning more calories. Each human body is quite unique in where it stores additonal adipose tissue and often that determines where the weight comes off. Hope this is helpful
Jim
Hi i’m new. found site from tim’s blog link. I live in ireland and have done 10 minute cold showers, at least one sometimes 2 per day. I am skinny anyway but now I can see my abs better after 2 weeks. I am pretty much doing everything in the book so can’t attribute it to cold alone. but what I like about cold is living in cold ireland, I am now able to study next to a wide open window and get lots of fresh air, which makes studying a breeze. It’s made me realize all the fresh air I have been missing during my day. now in a stuffy enviornment I can really feel the difference after 30 mins inhaling garbage air.
Steven
We are adapted to live in a wide range of temperature environments and can tolerate cool more easily than hot. First, we can always call on the evolutionary trait of layering clothing. That allowed humans to move out of the mostly temperate climates of our beginnings. Second, we have a very complex system for retaining/releasing excess heat generated as a natural byproduct of our metabolic system. As the temperature rise, more is given off and as it cools we slow the transfer until we reach thermal neutrality. At that point our waste heat exactly equals the loss. Below these temperatures our body recruits the mitochondria in BAT and other tissue along with muscle tone and shivering to maintain equilibrium – thermodynamic homeostasis.
What you are experiencing I find VERY common. Once the mental game of “cold” is defeated, cool temperatures become preferred. Sleep is better, thinking is better, and caloric burn is noticeably enhanced. The fresh air is not only a direct feedback of the cool (like waking up in the morning on a camping trip), but also the fact that if you live in an unpolluted environment, the dust that accumulates in the house alone is cleared.
I dread the summers indoors now. Unfortunately, I live in a climate that is very humid and hot. Great for water sports, but not too good to thermal load. Even with my thermostat at 72F/22C, I find myself wanting a fan…not hot, just not as cool as I’ve grown accustom.
Thanks for the input…new post on it’s way. Last month was INCREDIBLY busy.
Ray
i have found that I cannot tolerate heated rooms as others can anymore. The bad thing about this is I will have to work in a hospital next year after I graduate and I recently have found the wards very stuffy and hot, I am wondering whether I am more heat intolerant than others in this enviornment now with all my cold showers, or is it all in my head.
Yes, it is in your head, but the lack of tolerance is in their head too. Our body senses differences, not absolutes. We don’t “know” a comfortable temperature, we adjust to it in a range. You have adjusted to living towards the bottom of that range and here in the southern US, people adjust to living in the upper end of the range. It’s part of our evolutionary adaptation.
Heat and air condition have narrowed that adaptive range for most of us in the modern world. In some sense we can see that the energy isn’t free and we are storing some of it on our waistlines.
Most hospitals tend to keep the rooms cool as it enhances resting. I would say most of the time here, hospitals tend to be cold for visitors. The idea is that the patients can always add a blanket (bundle), but other patients can’t cool down by stripping any more. Humidity plays a role as well. At higher humidity levels, perspiration is not as effective and comfortable temperatures move down a few degrees. At low humidity, people are comfortable at higher temperatures, because perspiration (evaporative cooling of skin) is very effective; we’ve all heard about the “dry heat” in the desert.
So, it’s definitely in your head, but that is a good thing. You have exercised your evolutionary adaptation talent and by exposing to cooler environments, you are running up your metabolic utility bill. Now control input and you will lose bodyfat.
Ray
Ray,
As an ex swimmer, I am interested in understanding the thermal caloric effect of swimming but I can’t find any resources on the internet about this. Any suggestions?
Andrew
I’m working on it now. Too little work done in this area. My suggestion? Become a swimmer again. Cool water if you can find it. Get on a good diet program before starting. Eat sensibly 2 hour after swim. This is critical time of hunger. If you can resist it you’ll see great results.
Rat
Ray,
Based on your suggestions, I have been swimming recently at the local gym. The water temperature is roughly 80 degrees, so within the range that you have recommended.
I have noticed that after about 5 minutes of being in the pool, I am no longer cold (or even cool). Does it matter if I am not cool, cold (shivering)?
Thank you – this site is WONDERFUL!
Been reading your blog with interest and have been wondering why this haven’t been noticed before, since we have been reading about how people in clod climates burn more calories for years… maybe it was just to obvious for anyone to see.
Anyway, I assume that you are interested in how Thermal Loading impact fat/weight loss, but when I look at your data reporting page and spreadsheet, there are some data missing to be able to extrapolate the impact of Thermal Loading.
As the data collection is now, you will only know if people loose fat and at what rate, and if they use any form of Thermal loading or not, but you are not able to see how the impact of Thermal loading is, since you have no data that shows what the daily/weekly caloric need is, or how much the daily/weekly caloric intake is. Also the impact of exercise would be needed to get the full picture. In order to get consistent data would be necessary that the calculation is done on this site through the progress page or done by 1 specific page located somewhere on the internet, since the value can vary quite bit from site to site.
So collecting data about: weekly caloric need, weekly calories consumed, and weekly calories burned by exercise would make you able to do a calculation on how the Thermal Loading impact weight/fat loss.
Might also be interesting to know what climate zone the “lab rat” is located in, since we are interested in Thermal data specificly, and I would also recommend age group and gender, since this can have an impact to.
[…] Then Ray put some applied knowledge of objects re-entering the earth’s atmosphere into practice. I won’t steal Ray’s thunder, but I will direct you to his blog, Thermogenex. I encourage you to sign up for his newsletter and blog postings. The science is amazing. In particular, his research on caloric intake is simplified here: 7 M&M’s a day […]
Let’s get going in the inland northwest…
Fascinating blog. If my understanding so far is close… Given the effect of slight cooling all day is around 20% increase in RMR, the effect of a cool shower is actually quite minimal in isolation as you only get an improved thermogenic output during your cold shower, is it worth the few calories…
However, when a cold shower is part of a system, I.e. to help you find the rest of the day in a cold environment relatively more bareable, it would seem to make more sense.
How’s my logic???
Dead on. Add that these boosts also help with well being/mood in times of calorie scarcity of restriction.
I have some other replies to get to soon, just been slammed with international travel. Yours was easy to get too.
Thanks!
Ray
My office is kept so cold my hands often hurt. Is that cold enough to have an affect?
David
You may have Raynaud’s syndrome. Murry Hamlet came up with a treatment that works in many, but it is easier to do in the winter than summer. see this for example.
1) water temp in bucket at ~110F with body acclimated to indoor temperatures and place hands in water for 10 mins
2) move to cold outside and repeat for 10 mins, but dress lightly to have a little more body exposure.
This repeated daily, has decreased the issue significantly in people I’ve worked with. Some it has completely vanished.
Hope that helps!
Ray
Everybody’s hands hurt in the office! It’s just that cold in there. I guess so we can wear jackets in the summer… 🙂
So far, I’m on the 7th day of the potato famine. I’ve lost about 10 pounds. Some hunger pangs which pass shortly. My mouth is unusually sweet and smooth feeling. No other notices issues. Hanging in there so far.