Your Energy Isn’t
Random It’s
Rhythmic
WHEN YOUR NERVOUS SYSTEM HEALS, EVERYTHING CHANGES
Burned Out,
Wired, or
Exhausted?
Your Cortisol Pattern May Hold the Answer
Discover how your stress response is functioning through advanced cortisol testing and personalized support, so you can understand your energy, sleep, and nervous system at the root.
Featured Product
IS THIS TEST FOR YOU?
FREE ASSESSMENT HERE
This simple, non-invasive test allows you to understand how your cortisol levels are functioning throughout the day.
Using four saliva samples collected at specific times, this assessment creates a diurnal cortisol curve, showing how your stress hormones rise and fall from morning to night. This gives a much clearer picture than a single blood draw and helps identify patterns of imbalance within the adrenal system.
Balanced adrenal function supports steady energy, stable mood, restful sleep, and overall resilience. When cortisol is out of rhythm, it can impact everything from blood sugar and inflammation to focus, stamina, and hormone balance.
Saliva testing is considered a reliable and convenient way to measure cortisol, and also allows for DHEA evaluation, offering deeper insight into your body’s stress response.
Once your results are in, you can schedule a Functional Lab Review where we’ll walk through your results together and create a personalized protocol to help restore balance.
This is where we move from guessing to understanding.
NOTE: NOT AVAILABLE IN NY, CA, and MD
(Please contact me directly to discuss your options, thank you.)
Experience deeper insight into your body’s stress response with the Adrenal Stress Test from ZRT Laboratories. This simple at home saliva test measures your cortisol rhythm throughout the day to help uncover patterns connected to fatigue, burnout, sleep disruption, hormone imbalance, anxiety, inflammation, and feeling “wired but tired.”
Your body is always communicating. This test helps you better understand your body’s natural rhythms so you can support its return to optimal balance through a more informed, root cause focused approach.
WHAT IS CORTISOL?Cortisol is your body’s primary stress hormone, produced by the adrenal glands and regulated by your HPA-Axis. It plays a key role in energy, sleep, metabolism, mood, and immune function.
Rather than staying constant, cortisol follows a natural daily rhythm, rising in the morning to help you wake up and gradually lowering throughout the day so you can rest at night.
When this rhythm becomes disrupted, it can lead to symptoms like fatigue, anxiety, poor sleep, and feeling “wired but tired.” When it is chronically disrupted, a negative feedback loop can be created, making it difficult to correct long term, without testing.
WHY TEST CORTISOL?Many people are told their labs are “normal,” yet still feel off.
That’s because a single blood test often only captures one moment in time. Another factor is “normal” ranges are often far too broad to account for optimal wellness.
With functional cortisol testing (using multiple saliva samples throughout the day), and optimal ranges, we can see your diurnal cortisol curve, how your body is actually responding to stress over time.
Rather than staying constant, cortisol follows a natural daily rhythm, rising in the morning to help you wake up and gradually lowering throughout the day so you can rest at night.
When this rhythm becomes disrupted, it can lead to symptoms like fatigue, anxiety, poor sleep, and feeling “wired but tired.”
Your results help us understand:
How your body responds to stress
Whether your system is in a state of overdrive or depletion
How your cortisol rhythm is affecting sleep and energy
Underlying patterns contributing to burnout or imbalance
This allows us to move from guessing to clear, personalized insight.
IS THIS FOR YOU?This service is especially supportive if you:
No matter what you’re doing “right” but it feels like it’s not working
Feel tired no matter how much you rest
Feel wired, anxious, or overstimulated
Struggle with sleep (falling asleep or staying asleep)
Experience burnout or chronic stress
Feel “off” but your labs keep coming back normal
Have hormone, thyroid, mineral or energy imbalances
WHAT YOUR RESULTSCAN REVEALYour results help us understand:
How your body responds to stress
Whether your system is in a state of overdrive or depletion
How your cortisol rhythm is affecting your overall wellbeing
Underlying patterns contributing to burnout or imbalance
This allows us to move from guessing to clear, personalized insight
HOW TESTING WORKSThis stress hormone test uses a simple, at-home saliva collection to give a more complete picture of how your body is responding to stress throughout the day.
4-Point Salivary Cortisol + DHEA-S
Samples are collected at four key times throughout the day to map your natural cortisol rhythm (diurnal pattern), along with DHEA-S to assess overall adrenal balance.
This allows us to see:
How your energy rises and falls throughout the day
Whether your system is in overdrive, depleted, or dysregulated
Patterns that may be impacting sleep, mood, and resilience
Because this test measures active (free) cortisol, it provides a more functional, real-time view of your stress response.
UNIQUE APPROACHThis isn’t just about numbers.
Your results are interpreted through a whole-body lens, integrating:
Nervous system regulation
Mineral and nutritional support
Lifestyle and stress patterns
Intuitive insight and energetic awareness
This creates a plan that is realistic, supportive, and aligned with your body.
IMPORTANT NOTECortisol testing is not intended to diagnose or treat medical conditions but to provide insight into patterns within the body and support overall wellness.
SYMPTOMS OF
ADRENAL IMBALANCE
Mild to severe hypoglycemic episodes
Palpitations; pounding heart, heavy and hard heartbeat
Tachycardia; higher heart rate
Anxiety; feeling of panic
“Air hunger”; feeling starved for air, short of breath
Flu-like symptoms
Headache
All over body ache
Super-sensitive skin
Scalp ache
Hairloss
Feeling Hyper
Jittery
Clumsy (drop things, bump into things)- confusion
Suddenly feel extremely hungry
Low back pain
Weakness
Stress intolerance
Social anxiety
Difficulty focusing on more than one thing at a time
Shaky hands; shakiness
Diarrhea
Rage or sudden angry outbursts
Emotionally hyper-sensitive
Extreme fatigue
Brain Fog
Highly defensive
Paranoia; about people, places or things
Exacerbated reactions to daily stress
No patience
Easily irritated
Nausea in the face of stress
Even minor stress can have effects for days
Prolonged recovery from a dental visit
Dull cloud-filled head
Jumpiness
Muscle weakness
Dizziness
Light headedness
Motion sickness
Coffee putting patient to sleep
Vomiting even running up the slightest incline
Almost passing out every time patient gets up
Dark circles under my eyes
Waking up in the middle of the night for several hours
Difficulty falling asleep
Frequent urination
IBS symptoms
Worsening allergies
Over-reactivity