Scott Parazynski Repairs damaged Solar panel on the International Space StationThe last few weeks have been an unbelievable adventure. Sorry to leave you hanging on calories, but we’ll get back to that soon.  The days have been full of travel ranging from an amazing party hosted by Tim Ferriss in San Francisco to hanging out with Wim Hof (aka iceman) and good friend Astronaut, Scott Parazynski.  It’s an honor to interact with all of these incredible minds and we are all starting to see a real momentum in the power of the chill.

My home state (and city) were also hit hard by a the tornados and on a brighter Read Full Article →

7 M&Ms a are all it takes takes to gain 50 lbs in 20 years. Former Nasa scientist Ray Cronise thinks he can help with Thermal LodingIt 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.” Read Full Article →


Does infrared sauna burn more than cold exposure?Last week, one of our site members posted a comment to Ch-Ch-Changes about the benefits of heat and cold in losing weight. I think that 36 months ago I would have completely agreed with his comments; now I am not so sure. With his permission, I turned this dialog into a post, because I think there is widespread confusion on our thermoregulatory system and its effect on metabolic rate.

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changing your temperature slowly will help with thermal diet and thermal loadingWe’ve just had an unseasonably warm week in my hometown. That’s not completely true, it happens this way nearly every year.  A week or two of cold and then suddenly, it’s warm.

For the last two years, I’ve been studying people and their reaction to the environment around them. Not with loads of data and analysis, but the more reflective, subjective type of observation.

The one take away is that most don’t realize just how adaptable the human body can be – if allowed. Read Full Article →

BAT, Brown Adipose Tissue, Thermal diet and weight lossWe learned in Part 1 that not only do human infants start out with more fat than any other species, a higher percentage is brown adipose tissue (BAT). Women, in general have more than men and as Humans age, BAT seems to dwindle. It’s likely if you have ever been obese, you have less BAT then your skinny friends.

I have dozens of papers here on BAT. My interest with BAT began after Tim and I discussed it at length and started exchanging ideas and data. Honestly, I came to my conclusions from the complete opposite (but complimentary) approach – it was much more of a 30,000 ft level view on the subject. Read Full Article →

It’s been an incredible 6 weeks… I really appreciate all the emails and comments and the amazing number of people that have signed up to read and follow this site.  I know what everyone is asking,

“Ray, can you just tell me what to do?”

The answer is YES, but hang on a bit. One thing I expected would happen is the  ”me too” people  that would just start driveling about being cold and losing weight. The other expectation was that it would be presented as miserable and extreme. I wanted to support the ideas within The 4-hour body before beginning to suggest alternative/complementary approaches. Unfortunately, the health and fitness industry is loaded people that earn expert status by learning a few new words. Face it, we’ve never been more unfit as a species and we’ve also never spent more achieving it. That’s quite a contradiction.

Perhaps it’s time to change that even if it’s just a small group of us.

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cold exposure and weight loss... do we put on more fat for insulation in the winter?I fly a lot and on my recent trip to California, the fasten seat belt sign came on and within a few minutes, the plane ride became bumpy. The Captain announced over the intercom that he was going to asked the (uniformed) flight attendants to stop service until things cleared up. The sign went off a while later and peanuts, pretzels, and drinks were flowing (I resisted the urge). It happened more than once on this particular trip. Read Full Article →

Weight loss involves continuing to take small steps over timeEvery day you may make progress. Every step may be fruitful. Yet there will stretch out before you an ever-lengthening, ever-ascending, ever-improving path. You know you will never get to the end of the journey. But this, so far from discouraging, only adds to the joy and glory of the climb.” ~ Winston Churchill.

It’s easy to to become discouraged.  We all know, or think we know, fitness is a journey and not a destination, and yet the reality is that everyone feels that if they can just get past a certain point, it will be much easier. Read Full Article →

measuring and recording your progress is the only way to push through weight loss stagnation.If you want to progress, you must  measure. It’s true people win the lottery every now and then.  More often than winning the lottery, people get struck by lightning. The rest of us have to do something to see results. My observations are that  success is absolutely tied to measuring.  It can be predictive, suggestive, or sometimes compulsive, but I truly believe the more often one writes something down, the more likely it is they will succeed. Read Full Article →

...all the cool kids are doing it

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