|
|
 |
Burn The Fat, Feed The Muscle
Reprintable Articles
Cortisol, Stress And Body Fat: Straight Answers To The Top 20 Questions
About The "Stress Hormone"
Re-print instructions: You have
permission to publish this article in your e-zine, on your website, on
your blog or on your forum, provided the entire article is unaltered
and the bio/about the author box is included in its entirety. All you
need to do is copy and paste. You may of course, replace all
www.burnthefat.com links with your affiliate hoplink. I recommend
including the burnthefat.com website link at the top and bottom of the
article: Once underneath the author by-line at the top and again in the
author bio/resource box at the bottom, which gives the reader more than
one place to click through. It's also a great idea to include a
clickable book
cover graphic and or an author
photo with each article you print.
Title: Cortisol, Stress And
Body Fat: Straight Answers To The Top 20 Questions About The Stress
Hormone
By line: By Tom Venuto, NSCA-CPT, CSCS
URL: www.burnthefat.com (replace with
your clickbank affiliate hoplink - click on "hoplink instructions in
navigation links to your left if you need help)
Word count: 2863 words
Related keywords: cortisol, cortislim,
cortidrene, cortistress, cortisol hormone, cortisol supplements, stress
hormone, stress, belly fat, reduce cortisol, suppress cortisol,
cortisol and belly fat
Cortisol, Stress
And Body Fat: Straight Answers To The Top 20 Questions About The Stress
Hormone
By Tom Venuto, NSCA-CPT, CSCS
www.burnthefat.com
It seems that every time
science uncovers some type of association between body fat and
anything, opportunistic entrepreneurs are waiting in the shadows to
create a product and a marketing campaign around it. They ride the wave
into the multi millions, until the buzz dies down or until the Federal
Trade Commission (FTC) sues and slaps a padlock on their warehouse
doors. Then, it’s on to the “next big thing in
weight loss,” because they know there will always be a
gullible crowd eagerly waiting for the next quick fix. The most recent
example is when researchers discovered a correlation between cortisol
and abdominal body fat. Cortisol was then blamed as the latest culprit
in the obesity problem, and cortisol-suppressing pills were touted as
the “miracle solution.”
Big Claims, Little
Proof
After a web search on the
subject of cortisol, here are some of the claims you may find:
- Stress makes you fat
- Cortisol is what makes you fat
- Cortisol reducing supplements control stress
- Cortisol reducing supplements reduce belly fat
- Cortisol reducing supplements get rid of
“stress fat”
- Cortisol reducing supplements balance hormone
levels that cause stress
- Cortisol reducing supplements increase muscle
growth
- Cortisol supplements suppress appetite
- Cortisol supplements speed up metabolism
The advertising claims
include just enough scientific fact to make even the savviest consumers
say, “That makes sense, I think I’ll try
that.” They also hit home emotionally by focusing on common
hot buttons such as stress (who isn’t at least a little
stressed in this day and age?) Brilliant marketing. Convincing.
Unfortunately, most of the claims being made are completely false, with
only a tiny thread of truth woven in.
Cortisol is a very
important hormone that you must understand if you want to get maximum
results from your training and nutrition programs, but if you
don’t educate yourself, you may become one of the millions of
victims to fall for this latest fad. The answers to the frequently
asked questions in this article will arm you with the science-based
facts, while helping you steer clear of the hype-based scams.
What is cortisol?
Cortisol is a hormone
produced by your adrenal glands. It falls into a category of hormones
known as “glucocorticoids”, referring to their
ability to increase blood glucose levels. Cortisol is the primary
glucocorticoid.
Why does your body
produce cortisol?
Cortisol is a stress
hormone. Your body produces cortisol in response to stress, physical,
mental or emotional. This can include extremely low calorie diets,
intense training, high volume training, lack of quality sleep as well
as common daily stresses such as job pressures, fights with your spouse
or being caught in a traffic jam. Trauma, injury and surgery are also
major stressors to the body (Note: much of the research done on
cortisol and stress has been done on recovering patients, and such
findings may not carry over to healthy, athletic populations).
What does cortisol
do?
Cortisol is part of the
fight or flight response. Faced with a “life or
death” situation, cortisol increases the flow of glucose (as
well as protein and fat) out of your tissues and into the bloodstream
in order to increase energy and physical readiness to handle the
stressful situation or threat.
How do you know
whether your cortisol levels are high?
You can get your cortisol
levels tested if you choose to. The most common method of testing is a
blood test (blood cortisol levels). Saliva and 24 hour urine tests are
also available.
What is a normal
level of cortisol?
Cortisol levels are higher
in adults than children and levels fluctuate throughout each 24 hour
period, so tests must account for the time of day. Cortisol
concentrations are highest in the early morning around 6 – 8
a.m. and they are also elevated after exercise (a normal part of your
body’s response to exercise). The lowest levels are usually
around midnight. According to the Medline Encyclopedia, normal levels
of cortisol in the bloodstream at 8:00 a.m. are 6-23 mcg/dl.
Should you get
your cortisol levels tested?
For serious competitive
athletes, it may be worth the time, expense and inconvenience to have
cortisol tests done on a regular basis. Some strength and conditioning
coaches insist on it. For the average trainee, as long as you are aware
of the factors that produce excessive cortisol and take steps to keep
it in the normal, healthy range, then testing is probably not necessary.
Is cortisol
related to abdominal obesity?
Yes. There is a link
between high cortisol levels and storage of body fat, particularly
“visceral” abdominal body fat (also known as
intra-abdominal fat). Visceral fat is stored deeper in the abdominal
cavity and around the internal organs, whereas
“regular” fat is stored below the skin (known as
subcutaneous fat). Visceral fat is particularly unhealthy because it is
a risk factor for heart disease and diabetes.
Does Cortisol Make
you fat?
No, cortisol is not
“the thing” that makes you fat. In fact, one of the
effects of cortisol is to increase the breakdown of stored adipose
tissue into glycerol and fatty acids where it can enter the bloodstream
and then be used as energy. High levels of cortisol are merely one
contributing factor to storage of abdominal fat, not the primary cause.
An excess of calories from too much food and not enough exercise is
what makes you fat.
If cortisol is
related to abdominal obesity, then will taking a cortisol suppressing
pill get rid of abdominal (belly) fat?
No. Just because there is
an association between high cortisol levels and abdominal body fat
doesn’t mean that a taking a cortisol-suppressing pill will
remove abdominal body fat. The studies which showed a relationship
between cortisol and body fat did not test whether suppressing cortisol
removes fat that is already deposited on your body.
Does stress make
you fat?
No. If it did, then
everyone who is stressed would be gaining fat. Many people lose weight
while under stress. In some studies, test subjects with the highest
cortisol (and stress) levels lost the most weight. Stress, by itself,
does not increase body fat. However, if stress stimulates appetite and
leads to overeating, then the excess calories from “stress
eating” can make you fatter.
Is cortisol is bad
for you?
Cortisol is not
“bad for you,” it is a hormone that is essential
for life as part of our natural stress response. There are many
hormones in our bodies, which in the proper amounts, maintain good
health, but in excess or in deficiency, have negative effects or even
contribute to health problems or diseases. Cortisol is no different.
For example, Cushing’s syndrome is a disease of high cortisol
levels, while Addison’s is a disease of low cortisol levels.
You want to maintain a healthy, normal level of cortisol, not suppress
your cortisol to nothing or allow it to remain elevated.
Chronically elevated
cortisol levels may have a variety of negative effects. Cortisol is
catabolic and elevated cortisol levels can cause the loss of muscle
tissue by facilitating the process of converting lean tissue into
glucose. An excess of cortisol can also lead to a decrease in insulin
sensitivity, increased insulin resistance, reduced kidney function,
hypertension, suppressed immune function, reduced growth hormone
levels, and reduced connective tissue strength. Chronically elevated
levels of cortisol can also decrease strength and performance in
athletes.
Can suppressing
cortisol improve your muscle growth and strength?
High cortisol levels can
increase muscle protein breakdown and inhibit protein synthesis
(building up muscle proteins), so a chronically elevated cortisol level
is clearly counterproductive to building muscle. Bringing elevated
cortisol levels back to normal may improve recovery, strength,
hypertrophy and performance. However, there is no scientific evidence
that reducing your cortisol levels below normal will have any effect on
increasing strength or muscle growth.
Should you take a
cortisol-suppressing supplement to help you lose weight?
In my opinion, no,
absolutely not. Cortisol suppressing supplements are not a valid
solution for losing weight. The FTC has filed lawsuits against the
makers of Cortislim and Cortistress, charging them with making false
and unsubstantiated claims that their products can cause weight loss.
Lydia Parnes, acting director of the FTC’s bureau of consumer
protection says, “The defendant’s claims fly in the
face of reality. No pill can replace a healthy program of diet and
exercise.” Reducing excessively high cortisol levels through
supplement use may prove beneficial in some ways for hard training
athletes. However, pills do not make you lose fat. Body fat is lost by
creating a caloric deficit through exercise and nutrition.
Should you take a
cortisol-suppressing supplement to help control your stress levels?
There are quite a few
supplements, mostly herbs, which are reputed to have
“calming,” “relaxing,”
“tranquilizing,”
“stress-relieving” or
“anti-anxiety” effects. These include Magnolia
bark, kava kava, valerian, L-theanine and too many others to mention.
However, very few studies exist which have directly tested the effects
of these herbs on cortisol levels. Although some people may find value
in these types of products, the ideal solution is to reduce the stress
or change your perception of the stress to lessen its physical effects.
Treating symptoms does not remove causes. It can be dangerous to
“band-aid” the effects of stress while the stress
remains in place.
What should you do
if you have a lot of stress in your life?
It makes sense to take
steps to reduce stress in your life and lessen the impact of stressors
that cannot be avoided. Trying to avoid stress completely is not
possible, nor is it desirable. Stress is an important part of life
because you can’t achieve positive adaptations and growth
without stress to trigger them. It’s continuous
stress that you want to avoid. It’s okay to expose yourself
to stress, provided there is a sufficient period of rest afterwards so
you can fully recover.
One of the best ways to
keep cortisol in the normal range is to reduce stress and allow time
for recovery and renewal. There are effective and natural means of
reducing stress that don’t cost a penny, including getting
out in nature, deep breathing, enhancing sleep quality, relaxation
exercises, meditation and visualization-guided imagery. It's important
to develop a calm mind and sense of tranquility.
What’s
in those cortisol pills anyway?
The ingredients can vary in
type and quantity from one brand to the next. Some ingredients are
included in the formulations to have a relaxing or stress reducing
effect, some are included to reduce cortisol levels, while others are
aimed at insulin and blood sugar stabilization. Cortislim, for example,
contains Magnolia bark, beta sitosoterol, theanine, green tea extract,
bitter orange peel extract (source of synephrine), banaba leaf extract,
vanadium, vitamin C, calcium and Chromium.
Other ingredients that are
often used in the various product formulations include Epidemium,
phytosterols, tyrosine, Branched chain amino acids, ginseng,
ashwaganda, astragalus, kava kava, St. John’s wort,
Melatonin, SAM-e, Valerian, Gingko Biloba, Phosphatidyl Serine (PS),
Acetyl L-carnitine and Glutamine. Reviewing all of these is beyond the
scope of this article.
If you decide to
take a cortisol suppressing supplement what should you look for?
Before you even think about
supplements (or drugs), keep in mind that unnatural suppression of
cortisol may not be wise or necessary, especially if you
haven’t used all the natural cortisol and stress management
strategies at your disposal first. Once your nutrition, training and
recovery bases are covered, there is some solid research showing that
certain supplements may be beneficial, especially for athletes engaged
in extremely hard training.
Carbohydrate consumed with
lean protein immediately after training has a cortisol suppressing
effect. High glycemic index (GI) carbs in particular, cause an insulin
spike, which not only helps restore muscle glycogen, stimulates protein
synthesis and kick starts the recovery process, it also helps lower the
exercise-induced rise in cortisol. The research supporting this
practice is substantial. (This should serve as a warning to people on
low carb diets that are so strict that they don’t even allow
small amounts of carbs after workouts). Rather than solid food, many
athletes prefer a liquid “meal” using a commercial
post workout drink containing whey protein and maltodextrin plus
dextrose or glucose (fast acting protein and high GI carbs) because the
rapid absorption time may speed recovery.
Vitamin C, known mainly for
cold or flu protection and antioxidant properties, may decrease
cortisol levels. A study by Marsit, et al showed a reduction in
cortisol levels in elite weightlifters taking 1000 mg. of vitamin C per
day. Other studies have reported similar findings.
Phosphatidyl serine (PS) is
a phospholipid, which appears to have cortisol suppressing properties.
Studies by Fahey and Monteleone have shown that daily doses of 800 mg
can reduce cortisol. These studies did not conclude that PS would help
you lose weight or gain more muscle.
Glutamine is an amino acid,
which in some studies, has been shown to decrease cortisol and prevent
a decrease in protein synthesis. Many strength athletes swear by
glutamine for improved recovery, but the research is still not
conclusive about efficacy or dosages for athletes or bodybuilders. Much
of the research on Glutamine was performed on patients recovering from
surgery, burns or traumas (severe stresses to the body).
Acetyl-L Carnitine (ALC)
has been studied in Alzheimers patients as a method of improving
cognitive function. One study showed that long term use of Acetyl L
Carnitine lowered cortisol in the Alzheimers patients. Research on rats
and mice has shown that ALC increases luteinizing hormone, which may in
turn elevate testosterone. Whether these findings carry over to healthy
athletes has yet to be proven, but some coaches and athletes believe
that ALC lowers cortisol and elevates testosterone.
It’s important to
note that the research on some of these substances is often conflicting
and inconclusive. It's also important to note that many of the cortisol
suppressing supplements which are marketed to athletes or to people
seeking weight loss do not contain doses anywhere near the amounts that
were used in the research. (Yet another way that supplement companies
deceive consumers).
How can you lower
your cortisol levels naturally?
You can lower cortisol
naturally. In fact, if you are overtrained, unnatural cortisol
suppression may be nothing more than a “band aid,”
and continued overtraining can lead to adrenal exhaustion, which could
take months to remedy. Sometimes the best thing you can do is take a
rest or decrease your training volume and intensity rather than
artificially attempt to suppress cortisol. Symptoms of overtraining
include elevated resting pulse, sleep disturbances, fatigue, decreased
strength and decreased performance.
- Avoid very low calorie diets, especially for
prolonged periods of time. Low calorie dieting is a major stress to the
body. Low calorie diets increase cortisol while decreasing
testosterone.
- Use stress reduction techniques (stress, anger,
anxiety, and fear can raise cortisol)
- Avoid continuous stress. Stress is an important
part of growth. It’s when you remain under constant stress
without periods of recovery that you begin breaking down.
- Avoid overtraining by keeping workouts intense,
but brief (cortisol rises sharply after 45-60 min of strength training)
- Avoid overtraining by matching your intensity,
volume and duration to your recovery ability. Decrease your training
frequency, and or take a layoff if necessary.
- Suppress cortisol and maximize recovery after
workouts with proper nutrition: Consume a carb-protein meal or drink
immediately after your workout.
- Get plenty of quality sleep (sleep deprivation,
as a stressor, can raise cortisol).
- Avoid or minimize use of stimulants; caffeine,
ephedrine, synephrine, etc.
- Limit alcohol (large doses of alcohol elevate
cortisol).
- Stay well hydrated (at least one study has
suggested that dehydration may raise cortisol).
How do you spot a
weight loss pill scam?
The cortisol pill is just
one in a long string of bogus weight loss products, and it
won’t be the last! Why? Because weight loss supplements are
big business! Eight or nine figure fortunes have been made from the
sales of a single product, which was later proven to be a total farce.
How do you protect
yourself? Do your homework! Don’t take anything unless you
know exactly what’s in the product, why it’s in the
product and how much is in the product. Review the scientific research.
Don’t buy a weight loss product just because a radio
personality says it works! Don’t jump on the phone with your
credit card in hand after watching a thirty-minute infomercial! In this
day and age, you have to be smarter than that!
Conclusions
Excessive cortisol is not
good. But cortisol is not inherently bad; it’s a vitally
important hormone and part of your body’s natural stress
response. Cortisol does not make you fat. Stress does not make you fat.
Stress may lead to increased appetite… Increased appetite
may lead to eating too much… Eating too much makes you gain
fat. Make sense?
Cortisol suppressing agents
may have some practical uses. But rather than thinking of cortisol
supplements as a weight loss miracle (which they most surely are not),
get yourself on a solid exercise and nutrition program and seek natural
ways to enhance recovery and reduce stress. By doing this first, you
may be pleasantly surprised to find that you’re losing fat
and gaining muscle and there isn’t a need to take supplements
at all.
For more
information on how to lose body fat safely, permanently and naturally
without supplements or pills, check out the e-book, Burn The Fat, Feed
The Muscle at www.burnthefat.com
References:
1. Bidzinska, B., et al.,
Effect of different chronic intermittent stressors and acetyl L
Carnitine on hypothalamic beta endorphin and GnRH and on plasma
testosterone levels in male rats. Neuroendocrinology, 1993, 57(6):
985-990
2. Bjorntorp, P., Body fat
distribution, insulin resistance, and metabolic diseases. Nutrition,
1997, 13: 795-803
3. Bjorntorp, P., Do stress
reactions cause abdominal obesity and comorbidities? Obesity Reviews,
2001, 2: 73-86
4. Brillon, et al.,
“Effect of cortisol on energy expenditure and amino acid
metabolism in humans,” Am J Physiol 268 1995: E501-13.
5. Bruno, G, et al,, Acetyl
L Carnitine in Alzheimer disease: a short term study on CSF
neurotransmitters and neuropeptides. Anzeihmer Disease &
Associated Disorders, 1995. 9(3): p. 128-131
6. Chrousos, et al., CRH,
Stress and Depression: An Etiological Approach (Las Vegas, NV:
Conference on Cortisol and Anti-Cortisols, 1997)
7. Chrousos, G.P., The role
of stress and the hypothalamic-pituitary-adrenal axis in the
pathogenesis of the metabolic syndrome: neuro-endocrine and target
tissue-related causes. International Journal of Obesity and Related
Metabolic Disorders, 2000, 24, S50-55
8. Dallman, M.F., Pecoraro,
N., Akana, S.F., La Fleur, S.E., Gomez, F., Houshyar, H., Bell, M.E.,
Bhatnagar, S., Laugero, K.D., & Manalo, S. Chronic stress and
obesity: a new view of "comfort food". Proceedings of the National
Academy of Sciences, (2003), 30, 11696-11701
9. Epel ES, McEwen B,
Seeman T, Matthews K, Castellazzo G, Brownell KD, Bell J, Ickovics JR.
Stress and body shape: stress-induced cortisol secretion is
consistently greater among women with central fat. Psychosom Med. 2000
Sep-Oct; 62(5):623-32.
10. Fahey, et al., Hormonal
Effects of Phosphatidylserine (PS) during two weeks of intense weight
training (Orlando, Fl : ACSM Conference, 1998)
11. Fry, et al.,
“Resistance exercise overtraining and overreaching.
Neuroendocrine responses,” Sports Med, 1997, 23 (2): 106-129.
12. Futterman, A.D., et
al., Immunological and physiological changes associated with induced
positive and negative mood, Phychosomatic medicine, 1994, 56(6): 499-511
13. Griffin J, Ojeda S.
Textbook of endocrine physiology, 3rd ed. New York: Oxford University
Press, 1996.
14. Hickson, et al.,
“Glutamine prevents down regulation of myosin heavy chain
synthesis and muscle atrophy from glucocorticoids,” Am J
Physiol, 1995, 268: E730-E734.
15. Hickson, et al.,
“Glucocorticoid antagonism by exercise and
androgenic-anabolic steroids,” Med Sci Sports Exerc, 1990,
22: 331-340.
16. Kraemer, W.J., et al,
Physiological adaptations to a weight-loss dietary regimen and exercise
programs in women. Journal of Applied physiology, 83, 270-279.
17. Krsmanovic, L.Z., et
al., Actions of Acetyl L canitine on the hypothalamo-pituitary-gonadal
system in female rats. Journal of Steroid Biochemical Molecular
Biology, 1992. 43(4): 351-358
18. Kelley, et al,
‘energy restriction and immunocompetence in overweight
women.” Nutrition Research 18.2 (18): 159-169
19. Laitinen, J., Ek, E.,
& Sovio, U. Stress-related eating and drinking behavior and
body mass index and predictors of this behavior. Preventive Medicine,
2002, 34, 29-39
20. Marsit, J.L, et al.,
Effects of ascorbic acid on serum cortisol and the
Testosterone:Cortisol ratio in junior elite weightlifters, Journal of
Strength And Conditioning Research, 1998, 12(3), 179-184
21. Martignoni, E., et al,
Acetyl L carnitne acutely administered raises beta endorphin and
cortisol plasma levels in humans. Clinical Neuropharmacology, 1988. 11
(5) p. 472-47
22. Monteleone, P., et al,
Effects of phosphatidyl serine on the neuroendocrine response to
physical stress in humans. Neuroendocrinology, 1990, 52:243-248,
23. Monteleone, P., et al,
Blunting by chronic phosphatidyl serine administration of the
stress-induced activation of the hypothalamo-pituitary-adrenal axis in
healthy men. European Journal of Clinical Pharmacology, 42(4): 385-388,
1992
24. Ottosson, K
Vikman-Adolfsson, S Enerback, A Elander, P Bjorntorp and S Eden, Growth
hormone inhibits lipoprotein lipase activity in human adipose tissue,
Journal of Clinical Endocrinology & Metabolism, 2000, 80:
936-941,
25. Palermo, S., et al, The
effect of L-acetyl carnitine on some reproductive functions in the
oligoasthenospermic rat. Hormonal metabolism research, 1990. 22(12),
622 – 626
26. Peeke PM, Chrousos GP.
Hypercortisolism and Obesity. Ann NY Acad Sci 1995, 771:665-76.
27. Rizza, et al.,
“Cortisol-induced insulin resistance in man. Impaired
suppression of glucose production and stimulation of glucose
utilization due to a post receptor defect of insulin action,”
J Clin Endocrinol Metab, 1992, 54: 131-138.
28. Roberts, A.C. et al,
Overtraining affects male reproductive status. Fertility and Sterility,
1993, 60(4):686-692
29. Rowbottom, et al.,
“The emerging role of glutamine as an indicator of exercise
stress and overtraining,” Sports Med 21.2 1996: 80-97.
30. Roland Rosmond, Mary F.
Dallman and Per Björntorp, Stress-Related Cortisol Secretion
in Men: Relationships with Abdominal Obesity and Endocrine, Metabolic
and Hemodynamic Abnormalities, The Journal of Clinical Endocrinology
& Metabolism, 1998, Vol. 83, No. 6 1853-1859
31. Simmons, et al.,
“Increased proteolysis: an effect of increases in plasma
cortisol within the physiological range,” J Clin Invest,
1984, 73: 412-420.
About the Author:
Tom Venuto is a natural bodybuilder and author of
the #1 best selling e-book, "Burn the Fat, Feed The Muscle,”
which teaches you how to burn fat without drugs or supplements using
the little-known secrets of the world's best bodybuilders and fitness
models. Learn how to get rid of stubborn fat and turbo-charge your
metabolism by visiting: www.burnthefat.com.
|