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The Shovel will Fail You in Obesity, Finances & Life

A few years ago, my family and I set out to build a pond.

I have always loved Koi and the serenity of a Koi pond in my own back yard was very enticing. I spent about a year planning my design and the location.  I dreamed of a serene evening after a very long, hectic day seeing patients relaxing beside the pond.  The sound of trickling water, the occasional splash from fish, the cool breeze passing over the mist from a water-fall would sooth my soul after a busy day in the office.

I envisioned the perfect area.  An unused access path, previously worn by the previous owner with truck and trailer traffic, beside my now expanded patio. Twenty feet wide, thirty feet long and four feet deep. . . that seems just perfect.

I pulled out my shovel and set about digging. Eager to begin and filled with the energy of the final product, I set to digging.  What could be so hard about digging my own pond?  Think of the exercise I will be getting.  Thoughts spurred me on.

Minutes later, chest heaving, face glistening with sweat, I stared in dismay at the ground. All I had to show for my wild digging was a small 1/2 inch dent in the dusty Arizona top soil.

Sonoran Clay

Over time, calcium-carbonate, along with other minerals, accumulates and dissolves into the topsoil of the very arid regions of Arizona Sonoran Desert.  It forms a two to three-foot layer of soil called “caliche.” Periodic rains carry the calcium as far as three feet down into the soil, then the water rapidly evaporates in the blistering Arizona heat.  This often forms two to three feet of soil that is “literally” harder than concrete.

With tremendous zeal, a great deal of sweat and a round of painful blisters, I broke my third shovel on this impenetrable ground.  I realized this was much more difficult than I thought.  I pulled out the back-hoe attachment for my small farm tractor.  After a few hours and few gallons of diesel fuel later, still very little progress occurred.

Multiple weekends and evenings of digging in the Arizona caliche left me with three broken shovels, a ruptured hydrolic line in my tractor, anger that my expensive back-hoe attachment didn’t work, and only a small dent in the ground near my patio.  Even the brute force from the tractor would not budge the clay.  I wondered if dynamite would be effective?  (My wife would have none of this idea).

With my exuberance quashed, I concluded that this would require much more measured exhuming.

Escape From the Prison

We often imagine, with great delight, the removal or destruction of that which enslaves or imprisons us.  We dream that just a little sweat, exertion of a few shovel scoops of dirt and the foundation to our prison of obesity, addiction, debt, and depression are exposed.  A few extra scoops and we imagine freedom from that prison cell.

If only I had a jack hammer and a bigger, more powerful scoop, I imagine . . . I could make short work of these manacles that bind me.

But, our manacles and prison cells do not so easily give way.

The failings of our sharpened spades and powerful back-hoes form a new, even stronger fetter – the belief that our prison cell is unbreakable, that our challenge is just too great. These failings usually leave a person cured of any further desire to break free.  It quashs the dream and solidifying the depression of stagnation.

The in-fecundity of my shovel, no matter the strength and effort put behind it, was not cause to quit.  It was life’s lesson that prisons and shackles often only need a simple tool.

Enter the pick-axe.  During this process my wife said, “Honey, why don’t you use the pick in the garage?”

“If my shovel and the back-hoe didn’t work, there was no way I was going to break through this clay with a pick axe.” That was absurd, I thought.

Yet when I humbled myself to try, it was simple.  The pick-axe was unpretentious.  This simple tool allowed for an almost effortless stroke to a small area of weakness in the caliche.  A large flake of soil would pop free with each stroke. The process was repeated.

Scale by scale, the dragon’s flank was exposed. Careful work of the pick-axe began to loosen layer after layer, section after section, pellicle after pellicle.  Yes, it was slow work. But, each swing was a small victory.

At each little victory, my heart would leap, the dream would become ever clearer.

Working this magic again and again until finally the specter was weakened enough to pull out the shovel.  And, further work, allowed for bringing back the powerful back-hoe, in gratifying scoops.

The excavation that I thought would take two months took me fourteen.  But, it was gratifying.

I learned a powerful lesson. Wherever life has pinned you, fettered you or barred you in, put down the shovel, and pick up the pick-axe.  Second, if you really listen, your spouse may point out the tool you really need. Don’t be afraid to chip away at it a piece at a time.

Finances

Stop waiting for the sharper shovel or the bigger back-hoe to dig yourself out of your harrowing debt, mega mortgage, or your income dwarfing spending. The jackpot or financial windfall won’t come. While others await the jackpot, put down your shovel and shoulder your pick-axe.

  1. Pick one small debt and begin to pick at it by applying just a little extra each month until it is gone.
  2. Cancel your extra cable, sell the motorcycle and payoff the 21% interest credit card.
  3. If you must, pick up a side-hustle for extra to sharpen the pick.

Once you’ve lifted one flake, chip away at the next. Making progress will make it easier to continue.  It doesn’t matter how long it takes, just keep at it.

Marriage

You long for resolution of the apathy, progressive resentment and mutual stalemate that permeates your relationship.  You look in vain for the bigger shovel that will uncover the treasure that years of apathy have buried. You long to uncover your dreams and needs that have been covered and hardened under the clay of resentment.  The shovel and the back-hoe won’t help you here.

Drop the shovel.  Shoulder your pick-axe.

  1. Kiss your wife every time you leave, even if it’s just for a ten minutes to run to the convenience store.
  2. Hold her for five seconds longer every time you hug.
  3. Find a gift you can give her once a week, just because.
  4. Put down your phone and look her in the eyes when she talks to you and listen. Really listen and the flakes of hard clay will unveil the beauty of her soul.
  5. Find a way to praise her every day, even if it is through a simple text.

Health

You long to rid yourself of your addiction to sugar, bread, stress, and sleep deprivation.  You’ve tried to scoop them out of your life.  You even hired a trainer with some muscle to force you to change.  You’ve tried in vain to save yourself from yourself.

Trying to use the shovel here is like trying to use the shovel on steel forged walls of your life’s prison fortress.  Forget the shovel.  Shoulder your pick-axe.

  1. Start with one meal and make some substitutions.  My dietary plan can help you with this.
  2. Go to bed an hour earlier. Really, you’ll be surprised that the focus you have will more than compensate for the hour of lost time in the evening.
  3. Add a quality vitamin to your morning routine.
  4. Take ten minutes and do 20 push-ups and 20 sit-ups, then take a 10-minute walk.
  5. Simply remove the “white stuff” from your meals. You will be amazed at the results.
  6. Put down your phone for 30 minutes and read that book you’ve been meaning to read, instead of surfing Facebook.

Grand-standing with your back-hoe doesn’t help you.  Just swing the pick-axe once or twice.  Simple daily picking with the sharp point weakens the hardest of ground and the prison walls in our lives.  It takes time, so be patient.

Find the weak point, apply the pick.  Day by day, little by little you will be free.

I’ve been there.  I’m with you.  Keep me posted on your journey.

If you’re looking for a program that teaches you how to do this, check out my membership site.

Caffeine . . . Weight Loss Wonder Boy or Sneaky Scoundrel?

I’ve been looking for the answer for quite some time. . . what role does caffeine play in your and my weight management journey?  The answer gave me a headache. . . literally and figuratively.

As many of you, including my office staff, know, I love my Diet Dr. Pepper (and my bacon).  I found that being able to sip on a little soda throughout the day significantly helped the carbohydrate cravings and munchies during a busy and stressful day at the office.   Diet Dr. Pepper contains caffeine, however, I wasn’t really worried.  Caffeine has been well know to have a thermogenic effect which increases your metabolism and has been thought for many years to help with weight loss among the weight loss community.

Diet Dr. Pepper is, also, one of only four diet sodas on the grocery store shelves that doesn’t contain acesulfame potassium (click here to see why most artificial sweeteners cause weight gain).  The four diet sodas that I have been comfortable with my patients using are Diet Dr. Pepper, Diet Coke, Diet Mug Root-beer and Diet A&W Cream Soda.  These are the last four hold out diet sodas that still use NutraSweet (aspartame) as the sweetener.  Most of the soda companies have switched the sweetener in their diet sodas to the insulinogenic acesulfame potassium because it tastes more natural and aspartame has been given a media black eye of late.  However, NutraSweet (aspartame) is the only sweetener that doesn’t spike your insulin or raise blood sugar (click here to find out why that is important).

Yes, I know.  The ingestion of 600 times the approved amount of aspartame causes blindness in lab rats (but we’re not lab rats, and . . . have you ever met someone that drinks 600 Diet Dr. Peppers in a day?  The lethal dose of bananas, which are high in potassium that will stop your heart, is 400).  Aspartame can also exacerbate headaches in some (about 5% of people) and I’ve had a few patients with amplified fibromyalgia symptoms when they use aspartame.   But for most of us, its a useful sweetener that doesn’t spike your insulin response, halting or causing weight gain.

But, over the last few years, I’ve noticed that increased amounts of Diet Dr. Pepper & Diet Coke seem to cause plateauing of weight and decreasing the ability to shift into ketosis, especially mine.  I’ve also noticed (in my personal n=1 experimentation) that my ability to fast after using caffeine regularly seems to be less tolerable, causing headaches and fatigue 8-10 hours into the fast, symptoms that don’t seem to let up until eating. Through the process of elimination, caffeine seems to be the culprit.

Red Bull in caffeineAfter mulling through the last 10 years of caffeine research, most of which were small studies, had mixed results, used coffee as the caffeine delivery system (coffee has over 50 trace minerals that has the potential to skew the results based on the brand) and never seemed to ask the right questions, the ink from a study in the August 2004 Diabetes Care Journal screamed for my attention.

It appears that caffeine actually stimulates a glucose and insulin response through a secondary mechanism.   The insulin surge and glucose response is dramatically amplified in patients who are insulin resistant.  Caffeine doesn’t effect glucose or insulin if taken while fasting; however, when taken with a meal, glucose responses are 21% higher than normal, and insulin responses are 48% higher in the insulin resistant patient. Caffeine seems to only effect the postprandial (2 hours after a meal) glucose and insulin levels.  The literature shows mixed responses in patients when caffeine is in coffee or tea, probably due to the effect of other organic compounds (1).

Caffeine Effect on glucose insulin
Caffeine effect on plasma glucose and plasma insulin compared to placebo (1).

Caffeine also diminishes insulin sensitivity and impairs glucose tolerance in normal and already insulin resistant and/or obese patients.  This is seen most prominently in patients with diabetes mellitus type II (stage IV insulin resistance).  Caffeine causes alterations in glucose homeostasis by decreasing glucose uptake into skeletal muscle, thereby causing elevations in blood glucose concentration and causing an insulin release (2-6).

Studies show that caffeine causes a five fold increase in epinephrine and a smaller, but significant, norepinephrine release.  The diminished insulin sensitivity and exaggerated insulin response appears to be mediated by a catacholamine (epinephrine, norepinephrine & dopamine)  induced stress response (5).  Caffeine has a half life of about 6 hours, that means the caffeine in your system could cause a catacholamine response for up to 72 hours depending upon the amount of caffeine you ingest (7).

The reason for my, and other patient’s, headaches and fatigue after a short fast was due to the exaggerated stress hormone response.  Increased levels of insulin were induced by a catacholamine cascade after caffeine ingestion with a meal, dramatically more amplified in a person like me with insulin resistance. The caffeine with the last meal cause hypoglycemia 5-7 hours into the fasting, leading to headaches and fatigue that are only alleviated by eating.

Even when not fasting, the caffeine induced catacholamine cascade causes up to 48% more insulin release with a meal, halting weight loss and in some cases, causing weight gain.

Caffeine is not the “Wonder-Boy” we thought it was.

How much caffeine will cause these symptoms? 50 mg or more per day can have these effects.

caffeine-content-of-popular-drinks

Ingestion of caffeine has the following effects:

  • 20-40 mg – increased mental clarity for 2-6 hours
  • 50-100 mg – decreased mental clarity, confusion, catacholamine response
  • 250-700 mg – anxiety, nervousness, hypertension & insomnia
  • 500 mg – relaxation of internal anal sphincter tone (yes . . . you begin to soil yourself)
  • 1000 mg – tachycardia, heart palpitations, insomnia, tinnitus, cognitive difficulty.
  • 10,000 mg (10 grams) – lethal dose (Yes, 25 cups of Starbucks Coffee can kill you)

The equivalent of 100 mg of in a human was given to a spider, you can see the very interesting effect on productivity.  How often does the productivity of the day feel like the image below?

Spider Normal
Normal Spider (9)
Spider Caffeine
Spider on caffeine (9)

Beware that caffeine is now being added to a number of skin care products including wrinkle creams and makeup.  Yes, caffeine is absorbed through the skin, so check the ingredients on your skin care products.

Diet Dr. Pepper, my caffeine delivery system of choice, has slightly less caffeine (39 mg per 12 oz can or 3.25 mg per oz) than regular Dr. Pepper.  I found myself drinking 2-3 liters of Diet Dr. Pepper per day (long 16-18 hour work days in the office).  After doing my research, I realized that my caffeine tolerance had built up to quite a significant level (230-350 grams per day).

So, a few weeks ago, I quit . . . cold turkey.

Did I mention the 15 withdrawal symptoms of caffeine? (8)

  • Headache – behind the eyes to the back of the head
  • Sleepiness – can’t keep your eyes open kind of sleepiness
  • Irritability – everyone around you thinks you’ve become a bear
  • Lethargy – feels like your wearing a 70 lb lead vest
  • Constipation – do I really need to explain this one?
  • Depression – you may actually feel like giving up on life
  • Muscle Pain, Stiffness, Cramping – feel like you were run over by a train
  • Lack of Concentration – don’t plan on studying, doing your taxes or performing brain surgery during this period
  • Flu Like Illness – sinus pressure and stuffiness that just won’t clear
  • Insomnia – you feel sleepy, but you can’t sleep
  • Nausea & Vomiting – You may loose your appetite
  • Anxiety – amplified panic attacks or feeling like the sky is falling
  • Brain Fog – can’t hold coherent thoughts or difficulty with common tasks
  • Dizziness – your sense of equilibrium may be off
  • Low Blood Pressure & Heart Palpitations – low pressure and abnormal heart rhythm

I experienced 13 of the 15 that lasted for 4 days.   I do not recommend quitting cold turkey unless you have a week off and someone to hold your hand, cook your meals and dose your Tylenol or Motrin.  My wife thought I was dying. . . I thought I was dying on day two.  I actually had a nightmare about buying and getting into my own coffin.  It can take up to three weeks to completely recover from caffeine withdrawal.

The other way to quit is to decrease your caffeine intake by 50 mg every two days.   That means decrease caffeine by:

  • 1 can of soda every two days
  • 1/4 cup of coffee every day
  • 1/2 can of Energy Drinks every two days
  • 1 cup of tea every two days

The benefit of this method is that withdrawal symptoms are much less severe without the caffeine headache and the ability to remain productive.  It will take longer, but quitting cold turkey is not a pretty picture.  Been there . . . done that, . . . and I’m not going back. I actually lost another half inch off my waistline by day 5 of caffeine discontinuation.

What is the take home message here?  If you have any degree of insulin resistance, caffeine makes it worse and will amplify your weight gain as well as decrease the productivity of your day.

References:

  1. Lane JD, Barkauskas CE Surwit RS, Feinglos MN, Caffeine Impairs Glucose Metabolism in Type II Diabetes, Diabetes Care August 2004 vol. 27 no. 8 2047-2048; doi:10.2337/diacare.27.8.204
  2. Jankelson OM, Beaser SB, Howard FM, Mayer J: Effect of coffee on glucose tolerance and circulating insulin in men with maturity-onset diabetes. Lancet 1527–529, 1967
  3. Graham TE, Sathasivam P, Rowland M, Marko N, Greer F, Battram D: Caffeine ingestion elevates plasma insulin response in humans during an oral glucose tolerance test. Can J Physiol Pharmacol 79:559–565, 2001
  4. Greer F, Hudson R, Ross R, Graham T: Caffeine ingestion decreases glucose disposal during a hyperinsulinemic-euglycemic clamp in sedentary humans.Diabetes 50:2349–2354, 2001
  5. Keijzers GB, De Galan BE, Tack CJ, Smits P: Caffeine can decrease insulin sensitivity in humans. Diabetes Care 25:364–369, 2002
  6. Petrie HJ, et al. Caffeine ingestion increases the insulin response to an oral-glucose-tolerance test in obese men before and after weight loss. American Society for Clinical Nutrition. 80:22-28, 2004
  7. Evans SM, Griffiths RR, Caffeine Withdrawal: A Parametric Analysis of Caffeine Dosing Conditions, JPET April 1, 1999 vol. 289no. 1 285-294
  8. Noever R, Cronise J, Relwani RA. Using spider-web patterns to determine toxicity. NASA Tech Briefs April 29,1995. 19(4):82. Published in New Scientist magazine, 29 April 1995

Adrenal Insufficiency, Adrenal Fatigue, PseudoCushing’s Syndrome – Oh My!

Adrenal Fatigue? Adrenal Insufficiency?  Cortisol? PseudoCushing’s Syndrome?  What do these terms mean and why are they all over the internet these days? And, what do they have to do with your weight loss?

This was our topic this evening on PeriScope.  Katch Dr. Nally speak about this topic with rolling comments at Katch.me/docmuscles.  Or you can watch the video below:

If you’re not sure about what this is, you’re not alone. I think I’ve heard the term “Adrenal Fatigue” at lease four times a day for the last three months.  If you ask your doctor, they’ll probably scratch their heads too.  The funny thing is that “Adrenal Fatigue” isn’t a real diagnosis, but it is all over the internet and it shows up in the titles of magazines in the grocery store every day.  There’s even and “Adrenal Fatigue For Dummies” so it must be real, right?!  Adrenal Fatigue for Dummies

No.  It isn’t a real diagnosis.  It is a conglomeration of symptoms including fatigue, difficulty getting out of bed in the morning, and “brain fog” that have been lumped together to sell an “adrenal supplement.” (Sorry, but that’s really what it is all about.)  Do a Google search and the first five or six sites describing adrenal fatigue claim the solution is taking their “special adrenal supplement.”

I know what you’re thinking, “Your just a main stream, Western Medicine doctor, Dr. Nally, you wouldn’t understand.”  Actually, I do understand.

Adrenal fatigue has risen in popularity as a “lay diagnosis” because many patients show up at their doctors office with significant symptoms that actually interfere with their ability to function, and after all the testing comes back negative for any significant illness, they are told that they are normal.  But the patient still has the symptoms and no answer or treatment has been offered.  It’s discouraging. . . very discouraging.

That’s because the symptoms are actually the body’s response to chronic long term stress.  Many of my patients, myself included, have found themselves “stuck” in their weight loss progression, feeling fatigued, struggling to face the day, with a number of symptoms including cold intolerance, memory decline, difficulty concentrating, depression, anxiety, dry skin, hair loss, and even infertility in some cases.  Is it poor functioning adrenal glands? No, your feeling this way because the adrenal glands are actually doing their job!!

If the adrenal glands weren’t working you’d experience darkening of the skin, weight loss, gastric distress, significant weakness, anorexia, low blood pressure, and low blood sugar.  The symptoms are actually called Addison’s disease and it is actually fairly rare (1 in 100,000 chance to be exact).  So what is causing the symptoms you ask?

There are a number of reasons, but one that I am seeing more and more frequently is “Pseudo-Cushings’s Syndrome.Pseudo-Cushing’s Syndrome is a physiologic hypercortisolism (over production of cortisol) that can be caused by five common issues:

  1. Chronic Physical Stress
  2. Severe Bacterial or Fungal Infections that Go Untreated
  3. Malnutrition or Intense Chronic Exercise
  4. Psychological Stress – including untreated or under-treated depression, anxiety, post-traumatic stress, or dysthymia (chronic melancholy)
  5. Alcoholism

The psychiatric literature suggest that up to 80% of people with depressive disorders have increased cortisol secretion (1,2,3).  HPA Stress responsePeople with significant stressors in their life have been show to have an increased corsiol secretion. Chronic stress induces hyperactivity of the hypothalamic-pituitary-adrenal axis causing a daily, cyclic over production of cortisol and then normalization of cortisol after resolution of the stressor.  This cortisol response is not high enough to lead to a true Cushing’s Syndrome, but has the effect of the symptoms listed above and begins with limiting ones ability to loose weight.

I’m convinced that this is becoming more and more prevalent due to the high paced, high-stress, always on, plugged in, 24 hour information overload lives we live.

What is cortisol? It is a steroid hormone made naturally in the body by the adrenal cortex (outer portion of the adrenal gland). Cortisol is normally stimulated by a number of daily activities including fasting, awakening from sleep, exercise, and normal stresses upon the body. Cortisol release into the blood stream is highest in the morning, helping to wake us up, and tapers into the afternoon. Cortisol plays a very important role in helping our bodies to regulate the correct type (carbohydrate, fat, or protein) and amount of fuel to meet the bodies physiologic demands that are placed upon it at a given time (4,5,6).

HPAThyroidUnder a stress response, cortisol turns on gluconeogensis in the liver (the conversion of amino acids or proteins into glucose) for fuel. Cortisol, also, shifts the storage of fats into the deeper abdominal tissues (by stimulating insulin production) and turns on the maturation process of adipocytes (it makes your fat cells age – nothing like having old fat cells, right?!)  In the process, cortisol suppresses the immune system through an inhibitory effect designed to decrease inflammation during times of stress (7,8,9).  If this was only occurring once in a while, this cascade of hormones acts as an important process.  However, when cortisol production is chronically turned up, it leads to abnormal deposition of fat (weight gain), increased risk of infection, impotence, abnormal blood sugars, brain fog, head
aches, hypertension, depression, anxiety, hair loss, dry skin and ankle edema, to name a few.

The chronic elevation in cortisol directly stimulates increased insulin formation by increasing the production of glucose in the body, and cortisol actually blunts or block-aids the thyroid function axis. Both of these actions halt the ability to loose weight, and drive weight gain.
Cortisol also increases appetite (10).  That’s why many people get significant food cravings when they are under stress (“stress eaters”). Cortisol also indirectly affects the other neuro-hormones of the brain including CRH (corticotrophin releasing hormone), leptin, and neuropeptide Y (NPY). High levels of NPY and CRH and reduced levels of leptin have also been shown to stimulate appetite and cause weight gain (10-11).

How do you test for Pseudo-Cushing’s Syndrome?  

Testing can be done by your doctor with a simple morning blood test for cortisol. If your cortisol is found to be elevated, it needs to be repeated with an additional 24 hour urine cortisol measurement to confirm the diagnosis. If Cushing’s Syndrome is suspected, some additional blood testing and diagnostic imaging will be necessary.  Pseudo-Cushing syndrome will demonstrate a slightly elevated morning cortisol that doesn’t meet the criteria for true Cushing’s type syndrome or disease.

How do you treat it?

First, the stressor must be identified and removed.  Are you getting enough sleep?  Is there an underlying infection? Is there untreated anxiety or depression present?  Are you over-exercising?  These things must be addressed.

Second, underlying depression or anxiety can be treated with counseling, a variety of weight neutral anti-depressant medications or a combination of both.  Many of my patients find that meditation, prayer, and journaling are tremendous helps to overcoming much of the anxiety and depression they experience.

Third, adequate sleep is essential.  Remove the television, computer, cell phone, iPad or other electronic distraction from the bedroom.  Go to bed at the same time and get up at the same time each day. Give yourself time each day away from being plugged in, logged in or on-line.

Fourth, mild intensity (40% of your maximal exertion level) exercise 2-3 days a week was found to lower cortisol; however, moderate intensity (60% of your maximal exertion level) to high intensity (80% of your maximal exertion level) exercise was found to raise it (12).  A simple 20 minute walk, 2-3 times per week is very effective.  Find a hobby that you enjoy and participate in it once or twice a week.  Preferably, a hobby that requires some physical activity. The activity will actually help the sleep wake cycles to improve.

Fifth, follow a low carbohydrate or ketogenic diet.  Ketogenic diets decrease insulin and reverse the effect of long term cortisol production.  Ketogenic diets a have also been shown to decrease or mitigate inflammation by reducing hyperinsulinemia commonly present in these patients (13).

So, the take home message is . . . take your adrenal glands off of overdrive.

References:

  1. Pfohl B, Sherman B, Schlechte J, Winokur G. Differences in plasma ACTH and cortisol between depressed patients and normal controls. Biol Psychiatry 1985; 20:1055.
  2. Pfohl B, Sherman B, Schlechte J, Stone R. Pituitary-adrenal axis rhythm disturbances in psychiatric depression. Arch Gen Psychiatry 1985; 42:897.
  3. Gold PW, Loriaux DL, Roy A, et al. Responses to corticotropin-releasing hormone in the hypercortisolism of depression and Cushing’s disease. Pathophysiologic and diagnostic implications. N Engl J Med 1986; 314:1329.
  4. Ely, D.L. Organization of cardiovascular and neurohumoral responses to stress: implications for health and disease. Annals of the New York Academy of Sciences (Reprinted from Stress) 771:594-608, 1995.
  5. McEwen, B.S. The brain as a target of endocrine hormones. In Neuroendocrinology. Krieger and Hughs, Eds.: 33-42. Sinauer Association, Inc., Massachusetts, 1980.
  6. Vicennati, V., L. Ceroni, L. Gagliardi, et al. Response of the hypothalamic- pituitary-adrenocortical axis to high-protein/fat and high carbohydrate meals in women with different obesity phenotypes. The Journal of Clinical Endocrinology and Metabolism 87(8) 3984-3988, 2002.
  7. Wallerius, S., R. Rosmond, T. Ljung, et al. Rise in morning saliva cortisol is associated with abdominal obesity in men: a preliminary report. Journal of Endocrinology Investigation 26: 616-619, 2003.
  8. Epel, E.S., B. McEwen, T. Seeman, et al. Stress and body shape: stress-induced cortisol secretion is consistently greater among women with central fat.
    Psychosomatic Medicine 62:623-632, 2000.
  9. Tomlinson, J.W. & P.M. Stewart. The functional consequences of 11_- hydroxysteroid dehydrogenase expression in adipose tissue. Hormone and Metabolism Research 34: 746-751, 2002.
  10. Epel, E., R. Lapidus, B. McEwen, et al. Stress may add bite to appetite in women: a laboratory study of stress-induced cortisol and eating behavior.Psychoneuroendocrinology 26: 37-49, 2001.
  11. Cavagnini, F., M. Croci, P. Putignano, et al. Glucocorticoids and neuroendocrine function. International Journal of Obesity 24: S77-S79, 2000.
  12. Hill EE, Zack E, Battaglini C, Viru M, Vuru A, Hackney AC. Exercise and circulating cortisol levels: the intensity threshold effect. J Endocrinol Invest. 2008. Jul;31(7):587-91.
  13. Fishel MA et al., Hyperinsulinemia Provokes Synchronous Increases in Central Inflammation and β-Amyloid in Normal Adults. Arch Neurol. 2005;62(10):1539-1544. doi:10.1001/archneur.62.10.noc50112.