Nutrition
Information | Exercise
and Physiology Information
Harmony
of Hormones and Neurotransmitters
Justin
Opal, RPT
Who
we are is greatly dictated by the delicate balance of hormones
within our bodies. Hormones are regulated by the endocrine
system which is sensitive to environment, thought, stress
and diet. Hormones and neurotransmitters are chemical messengers
that relay vital instructions through out our entire bodies.
All of our hormones were designed to be in harmony with
each other and nature’s circadian rhythms (night and
day cycles and seasons). Even one hormone out of balance
will send the whole system into dysfunction. Hormonal dysfunction
can lead to weight gain, insomnia, depression, uncontrollable
appetite, fatigue, mood swings, inability to think or remember,
see, hear and make decisions. As you can see our hormonal
health deserves our focus. What we eat and how we live has
a major influence on how our hormones work. The increasingly
poor diets of today have had massive impacts on our health
and hormones. Modern diets have caused chronically high
levels of stress, obesity, diabetes, and other degenerative
diseases. Little attention has been paid to the importance
of hormonal harmony.
Though
all is not lost, the time to act is now. Every one of our 100
trillion cells is doing everything it can to make sure we function
at optimal levels, but they have to work with what we give and
tell them. For example, to fully reap the rejuvenating and revitalizing
effects of growth hormone (GH) we need to give our bodies a chance
to do their magic. Growth hormone is mainly secreted in short
bursts during the later phases of deep sleep. If there is insulin
in your blood stream when you go to sleep the proper sequence
of events for GH to be secreted is interrupted. Insulin is produced
in response to the food we eat and stays in our blood system for
2 to 4 hours. To allow GH to be secreted we need to make sure
we have met our nutritional requirements in time to stop eating
at least 2 hours before bedtime. This is just one example of how
our eating habits affect our hormonal health. Below is a brief
overview of our crucial hormones and neurotransmitters.
Anabolic
Hormones and Neurotransmitters = cellular repair systems
Insulin: -required to store energy (glucose as glycogen) and synthesize
proteins from amino acids
-insulin allows us to use blood sugar in the fuel mix for our
cells
-produced in the pancreas after meals and when blood sugar is
elevated
-when insulin levels are low you feel tried because your cells
do not receive enough glucose
-when insulin levels are high insulin receptors shut down and
you store excess glucose as body fat
-elevated insulin levels cause artery and vascular walls to swell,
which decrease their diameter and makes it more difficult to circulate
nutrients and oxygen
-elevated insulin levels of insulin are the norm for individuals
who are over weight due to the fact that insulin production is
greatly influenced by body weight
-eating excess carbohydrates and processed foods sends our insulin
production through the roof and burns out our receptor sites making
it extremely difficult for us to stop our cravings for sweets,
which leads us on a downward spiral towards adult-onset diabetes
and obesity
Testosterone:
-equally important for men and women
-increases muscle mass, metabolic rate, red blood cells and promotes
strong bones
-initiates protein synthesis
-promotes the release of growth hormone (GH)
Growth
Hormone (GH): -released from the pituitary gland during deep sleep
-provides us with a sense of well being, increases muscle mass,
strengthens bones, reduces body fat, and strengthens our immune
systems
Serotonin: -a neurotransmitter that affects our cravings, obsessive
behavior, appetite, tranquility, peace of mind, and comfort
-serotonin mitigates negative impulses and behaviors
-too much causes nausea and diarrhea, while too little causes
a person to be anxious, restless, depressed, impulsive, and aggressive
-serotonin has to be balanced with melatonin (below), imbalances
cause increases in stress, poor impulse control, depression, overeating
and drinking
-serotonin is produced in the brain from the amino acid tryptophan
-when levels of tryptophan rise and fall so do levels of serotonin
Melatonin:
-influences our biological clock
-effects a wide range of functions including fertility, immune
function and insulin production
-is the strongest anti-cancer hormone
-made from serotonin
-production and release is influenced by day/night cycles and
seasonal variations
-turned on from daylight and off by darkness
Dopamine:
-stimulating neurotransmitter
-naturally is released before we wake up and causes that get up
and go feeling we should have when waking up
-if you go to bed too late in the dark cycle it will not be released
and you’ll feel sluggish and drowsy
-operates the fight or flight response with the release of adrenaline
-causes involuntary movements like blinking, emotional drive and
spontaneity
-dopamine reduces with age and can be burnt out faster by abusing
drugs like marijuana, speed, crack and cocaine
-dopamine deficiency is known as Parkinson’s disease
Dehydroepiandrosterone
(DHEA): -the most abundant hormone in our bodies
-produced in the adrenal glands
-considered the mother hormone because it is used to produce other
hormones such as estrogen, progesterone, testosterone and cortisol
-balanced levels of DHEA send messages to each of our 100 trillion
cells to repair, rebuild, restore and revitalize
-improves our memory, mood, immune system and longevity
Catabolic Hormones = cellular degradation
Cortisol: -produced in the adrenal glands
-designed to be a short term coping mechanism to deal with extreme
stress
-today most of us function on chronically elevated levels of stress,
not only from the obvious causes (work, traffic, politics) but
also from poor diets full of processed foods with increase stress
on the cellular level to deal with such pollutants
-when cortisol levels are too high the immune system is suppressed,
insulin, blood pressure, and blood sugar levels increase which
may lead to brain damage
Glucagon:
-processes glucose
-balance between insulin and glucagons dictates whether there
is storage or depletion of energy stores
-produced in the pancreas and causes increases in blood glucose
levels between meals by stimulating the breakdown of glycogen
by the liver
-Glucagon increases with age and promotes elevated glucose levels
Epinephrine
and Norepinephrine: -both work with cortisol during times of danger
to stimulate the nervous system, increase heart rate and make
us more alert
-epinephrine is also called adrenalin
-norepinephrine is also called noradrenalin
-too much can cause anxiety attacks and mess up the insulin-glucagon
balance
Thyroid
Hormone: -controls our resting metabolic rate
-we are very sensitive to any imbalance
-too much increases metabolism, aging, and makes you agitated
or jumpy
-too little makes you depressed and unresponsive
We are able to correct dysfunctions with our hormones through
lifestyle choices. Diet and exercise are factors that are completely
under our control and have a profound influence on our hormonal
balance. Meditation and sleep patterns can also help restore the
delicate balance. Millions of dollars have been spent on products
that try to duplicate what proper nutrition and sleep can do for
us naturally. We often spend too much time and energy on factors
that we have little control over. Here is a chance to take control
and improve how we feel and live. Below an example of a daily
menu that can boost our hormonal system and restore balance:
-Breakfast:
After fasting for the entire evening it’s important to give
your body a nourishing meal to “break the fast”. A
combination of 40% protein, 40% carbohydrates and 20% fat will
do the trick. This combination may include 1 whole egg and 2 whites
from free range chickens fed a healthy diet high in essential
fatty acids on a gluten and sugar free piece of toast with a large
glass on water.
-Morning
snack: Berry-hemp protein smoothie or a mixture of nuts and seeds
-Lunch:
A combination similar to breakfast. I highly recommend meals such
as a spinach tuna salad or salmon with steamed vegetables and
all natural tofu.
-Afternoon
snack: raw vegetables or fruit.
-Dinner:
Should include complex carbohydrates such as legumes with a high
quality source of protein like wild game and more fresh vegetables.
Making
hormonally sound nutrition choices is your best strategy to reduce
stress, improve your energy levels, food cravings, sleep patterns
and mood. The above menu is only one example. It is equally important
to not get stuck in a rut of food choices. Variety is more than
the spice of life it ensures that we are not slowly developing
deficiencies over time. The greater the variety in your diet the
greater your chances are of meeting all of your bodies nutritional
needs.
Reference:
Sam Graci, The Food Connection, Macmillian Canada 2001
For
further information check out www.opalathletics.com or contact:
Justin Opal
Cell 604-219-4075
E-mail jopal@opalathletics.com