Master Muscle Testing: 5 Steps to Unlock Body’s Secrets
Manual muscle testing, a core skill in applied kinesiology, provides a unique window into the body’s functional status. Understanding the nuanced interplay between muscles and the nervous system is critical, making the 5 stepmethod of manual muscle testing a crucial skill for practitioners. Dr. George Goodheart, a pioneer in this field, emphasized the importance of precise technique in obtaining reliable results. This methodology allows clinicians in settings like chiropractic offices to assess muscle strength and identify imbalances that may contribute to a variety of health concerns. Mastering the 5 stepmethod of manual muscle testing is not only about applying force but also about interpreting the body’s response with accuracy and insight.
Image taken from the YouTube channel Instructor Brooks , from the video titled Manual Muscle Testing Grades 5 through 3+ .
Unlocking Your Body’s Secrets with Manual Muscle Testing (MMT)
Manual Muscle Testing (MMT) stands as a unique and insightful assessment tool, offering a window into the complex workings of the human body.
It’s more than just evaluating strength; MMT can reveal hidden imbalances and communication breakdowns within the neuromuscular system.
Think of it as a conversation with your body, where muscle responses provide valuable clues.
This method goes beyond simply identifying strong or weak muscles. It can reveal insights into the interplay between muscles, organs, and even emotional states.
Defining Manual Muscle Testing
At its core, Manual Muscle Testing (MMT) is a non-invasive diagnostic technique used to evaluate the functional status of muscles and their connection to the nervous system.
A practitioner applies gentle pressure to a specific muscle group while the patient resists. The therapist assesses the muscle’s ability to hold its position against this resistance.
The purpose extends beyond determining raw strength.
It’s about gauging the efficiency of the nerve pathways and the overall communication between the brain and the targeted muscle.
This nuanced assessment can expose subtle weaknesses or imbalances that might otherwise go unnoticed.
Unveiling the Body’s Hidden Language
The phrase "unlocking the body’s secrets" captures the essence of MMT’s diagnostic potential.
Through careful observation and precise testing, practitioners can decipher the body’s subtle language of muscle responses.
Weakness in a particular muscle might indicate an issue with its corresponding organ, meridian, or even nutritional deficiencies.
For example, a weak psoas muscle could be linked to kidney stress, while a weak deltoid might be associated with thyroid imbalances.
These connections highlight the holistic nature of MMT, recognizing that the body functions as an interconnected whole.
By identifying these underlying imbalances, MMT paves the way for targeted interventions and personalized treatment plans.
This approach empowers individuals to address the root cause of their health issues rather than merely treating the symptoms.
The 5-Step Method: A Structured Path to Insight
To ensure consistency and accuracy, MMT is often performed using a structured approach.
The 5-step method provides a practical and organized framework for conducting comprehensive muscle assessments.
This method guides the practitioner through a systematic process, from initial patient positioning to developing a tailored treatment plan.
Each step plays a crucial role in gathering information and interpreting the body’s responses.
The 5-step method includes:
- Patient Positioning and Preparation: Ensuring proper alignment and comfort.
- Initial Assessment: Establishing a baseline and observing posture.
- Applying Resistance: Testing the muscle’s ability to hold against pressure.
- Diagnosis: Interpreting the muscle’s response and identifying weaknesses.
- Treatment: Developing a plan to restore function and address imbalances.
By following this structured method, practitioners can confidently navigate the complexities of MMT and unlock its full potential for enhancing health and well-being.
The Roots of MMT: Exploring Applied Kinesiology and the Legacy of George Goodheart
Understanding Manual Muscle Testing (MMT) requires tracing its origins back to Applied Kinesiology (AK).
This connection provides crucial context for appreciating its diagnostic and therapeutic potential.
Applied Kinesiology, as a field, laid the groundwork for MMT’s development and its widespread adoption.
The Historical Link Between MMT and Applied Kinesiology
The story of MMT is inextricably linked to Applied Kinesiology, a system developed in the mid-1960s.
Applied Kinesiology is a diagnostic method that uses muscle testing to evaluate various aspects of a patient’s health.
It goes beyond simply assessing muscle strength; it aims to identify imbalances related to organ function, nutritional status, and even emotional well-being.
MMT, as a technique, became a core component of Applied Kinesiology, providing a tangible way to assess these broader health connections.
George Goodheart: The Pioneer of Applied Kinesiology
Dr. George Goodheart is the chiropractor credited with developing and popularizing Applied Kinesiology.
He observed that specific muscles seemed to weaken in conjunction with dysfunction in related organs or systems.
Goodheart meticulously documented these relationships, creating a system of muscle tests that could be used to identify and address a wide range of health issues.
His pioneering work transformed MMT from a simple strength assessment into a diagnostic tool for uncovering underlying imbalances.
Goodheart’s research into muscle strength, as a reflection of overall health, was groundbreaking.
He emphasized the interconnectedness of the body, demonstrating how seemingly isolated muscle weaknesses could be indicative of deeper systemic problems.
His contributions were instrumental in shaping the holistic perspective that defines MMT today.
The Holistic Perspective of MMT
One of the defining characteristics of MMT, inherited from Applied Kinesiology, is its holistic approach to health.
This perspective recognizes that the body is a complex, interconnected system, where muscle function is not isolated but intricately linked to other physiological processes.
MMT, therefore, is not just about identifying weak muscles; it’s about understanding why a muscle is weak.
A weakness in a particular muscle might indicate an issue with its corresponding organ, meridian, nutritional deficiency, or even emotional stress.
For example, a weak psoas muscle, as mentioned earlier, could be related to kidney function or emotional stress.
This holistic approach distinguishes MMT from traditional muscle testing that primarily focuses on orthopedic or neurological conditions.
By considering the broader context of a patient’s health, MMT offers a more comprehensive and nuanced understanding of their condition.
The pioneering insights of Goodheart and the principles of Applied Kinesiology offer a crucial foundation for understanding MMT. However, the ability to effectively assess muscle function hinges on a deeper understanding of the mechanisms that govern muscle control.
The Nervous System: The Conductor of Muscle Function
The human body, in its incredible complexity, relies on a vast network of communication to perform even the simplest movements. This intricate network is primarily orchestrated by the nervous system, and its role is absolutely central to understanding how MMT works and what it reveals.
The Central Nervous System’s Role in Muscle Control
The central nervous system (CNS), comprised of the brain and spinal cord, serves as the command center for all voluntary and involuntary muscle actions. It’s responsible for initiating, coordinating, and regulating muscle contraction and relaxation, ensuring smooth and purposeful movement. Without a properly functioning CNS, our muscles would be unable to respond to our intentions or to external stimuli.
The CNS acts as the ultimate conductor of the muscular orchestra.
Neural Communication: The Brain-Muscle Dialogue
The communication between the brain and muscles occurs through a sophisticated process involving specialized cells called neurons. When the brain decides to initiate a movement, it sends electrical signals down the spinal cord.
These signals then travel along motor neurons, which extend from the spinal cord to specific muscles. At the neuromuscular junction, the motor neuron releases a neurotransmitter (acetylcholine), triggering a cascade of events that leads to muscle fiber contraction.
This intricate process, happening in milliseconds, demonstrates the astonishing efficiency and precision of neural communication. It is this communication pathway that MMT seeks to evaluate.
MMT: Assessing the Efficiency of the Communication Pathway
Manual Muscle Testing provides a valuable method for indirectly assessing the integrity and efficiency of this brain-muscle communication pathway. When a therapist applies resistance during an MMT assessment, they are essentially testing the muscle’s ability to respond appropriately to a neural signal.
A strong muscle response suggests that the neural pathway is functioning correctly, while a weak response might indicate a disruption somewhere along the line. This disruption could stem from a variety of factors, including:
- Nerve compression or damage
- Nutritional deficiencies
- Inflammation
- Emotional stress
By carefully evaluating the muscle’s response to resistance, practitioners can gain insights into potential neurological issues and related health concerns. MMT acts as a functional neurological assessment, revealing subtle imbalances that may not be apparent through other diagnostic methods.
It’s important to note that MMT does not directly measure nerve function. Instead, it assesses the observable outcome of that function – the muscle’s ability to contract and maintain its position against resistance. Therefore, understanding the nervous system’s fundamental role is crucial for interpreting MMT findings accurately and developing effective treatment strategies.
Identifying Imbalances: Decoding Muscle Strength and Weakness with MMT
Having explored the neurological underpinnings of muscle function, we now turn our attention to how Manual Muscle Testing (MMT) allows us to interpret variations in muscle strength. It’s through this interpretation that we begin to unlock the body’s hidden imbalances and understand their potential impact on overall health.
Muscle Strength and Weakness: Windows into Body Function
In the context of MMT, muscle strength and weakness are not simply measures of physical power. Instead, they serve as valuable indicators of the body’s overall functional status. A strong muscle, in this context, is one that can effectively resist the applied pressure during the test. This demonstrates that the neural pathways controlling that muscle are functioning optimally.
Conversely, a weak muscle doesn’t necessarily signify a muscular problem. It often suggests an underlying issue affecting the muscle’s ability to properly respond to neural signals. This could stem from various factors, ranging from nerve impingement to nutritional deficiencies or even emotional stress.
Therefore, understanding the nuances of muscle strength and weakness within the MMT framework goes beyond a simple pass/fail assessment.
It provides a nuanced picture of the body’s interconnected systems.
Pinpointing Imbalances: The Diagnostic Power of MMT
One of the core strengths of MMT lies in its ability to pinpoint imbalances and areas of dysfunction throughout the body. By systematically testing various muscles, practitioners can identify patterns of weakness or inhibition that might not be apparent through other diagnostic methods.
This targeted approach is critical. Because it allows for a more precise understanding of the root cause of a patient’s symptoms.
For instance, weakness in a specific shoulder muscle might indicate a problem in the cervical spine affecting the nerves that innervate that muscle. Alternatively, it might point to a visceral issue that is creating a neurological reflex affecting the muscle’s function.
MMT serves as a powerful tool for unraveling these complex relationships and identifying the true source of the problem.
The Role of Indicator Muscles
Within the framework of MMT, indicator muscles serve as key assessment points for identifying underlying problems. These are typically strong muscles that are initially tested to establish a baseline. The practitioner then introduces a stimulus, such as touching a specific acupuncture point, challenging a specific organ reflex, or exposing the patient to a potential allergen.
If the indicator muscle weakens in response to this stimulus, it suggests a potential connection between the stimulus and the overall function of the body. Indicator muscles are not inherently special in their physiology.
However, their strategic use allows practitioners to evaluate the body’s response to various challenges and stressors in a non-invasive and informative manner.
The selection of appropriate indicator muscles is crucial for accurate assessment. The practitioner considers the anatomical location of the muscle, its neurological innervation, and its potential relationship to the patient’s presenting symptoms.
By carefully observing the response of these indicator muscles, practitioners can gain valuable insights into the body’s intricate network of interconnections.
The 5-Step MMT Method: A Step-by-Step Guide to Assessment
Having established the diagnostic power of MMT in pinpointing imbalances, let’s transition to the practical application of this technique. The 5-step MMT method provides a structured framework for assessing muscle strength and function. Understanding this method is crucial for anyone seeking to utilize MMT effectively.
This section offers a detailed, practical guide to performing MMT using the 5-step method. It covers each step from patient positioning to treatment planning. Let’s explore each of these steps in detail.
Step 1: Patient Positioning and Preparation
Proper patient positioning is paramount for accurate MMT results. The position should isolate the muscle being tested.
The therapist needs to clearly understand the specific positioning requirements for each muscle test. Reference materials and training are crucial here.
Consider factors like gravity, stability, and the patient’s ability to maintain the position.
Importance of Comfort and Communication
Patient comfort is essential. A relaxed patient will provide more accurate results.
Explain the procedure clearly. Make sure the patient understands what you will be doing and what you need them to do.
Address any concerns or questions they may have before beginning the test. This fosters trust and cooperation.
Clear communication throughout the process is crucial. Provide consistent verbal cues.
Step 2: Initial Assessment: Finding the Starting Point
Before applying resistance, the therapist must conduct an initial assessment. This involves observing the patient.
This will establish the muscle’s baseline state.
The Therapist’s Initial Setup and Observation
Observe the patient’s posture and movement patterns. Look for any obvious asymmetries or limitations.
Palpate the muscle being tested to assess its tone and tenderness. Feel for any knots or trigger points.
Note any visible signs of inflammation or injury. This informs the therapist about the muscle’s current condition.
Assessing the Muscle’s Baseline State
Ask the patient to perform the desired movement against gravity. Observe the quality of the movement.
Can they complete the full range of motion smoothly and without pain? This provides a baseline understanding.
If the patient cannot perform the movement against gravity, reposition them. Test them in a gravity-minimized position.
This helps determine if the weakness is significant or simply due to gravity’s influence.
Step 3: Applying Resistance: Testing Muscle Strength
This step involves applying resistance to the muscle being tested. The aim is to assess its ability to resist force.
Correct Resistance Technique
Apply resistance in the direction opposite to the muscle’s action.
The resistance should be applied gradually and smoothly. Avoid jerky or sudden movements.
Use a consistent amount of pressure throughout the test. This ensures a fair and accurate assessment.
Gradual and Consistent Pressure
Start with light pressure and gradually increase it. Observe the patient’s response.
The resistance should be sufficient to challenge the muscle. Do not overwhelm the patient or cause pain.
Maintain consistent pressure for a few seconds. This allows you to accurately assess the muscle’s ability to sustain force.
Step 4: Diagnosis: Evaluating the Response and Identifying Weakness
The patient’s response to resistance provides valuable diagnostic information. The therapist must interpret this response carefully.
Interpreting the Patient’s Response
A strong muscle will resist the applied pressure without giving way. The patient can maintain their position against resistance.
A weak muscle will give way under pressure. The patient is unable to maintain their position.
Note any pain or discomfort reported by the patient during the test. This could indicate an injury or underlying condition.
Identifying Muscle Weakness and Implications
Muscle weakness suggests an underlying problem affecting the muscle’s function.
This could be due to neurological issues, muscle imbalances, or other factors.
Identify patterns of weakness across multiple muscles. This can help pinpoint the root cause of the problem.
Consider the potential implications of the muscle weakness. How does it affect the patient’s daily activities?
Step 5: Treatment: Planning Intervention and Restoring Function
MMT is not only a diagnostic tool. It also informs treatment planning.
The findings from the MMT assessment guide the selection of appropriate intervention strategies.
Choosing Appropriate Treatment Techniques
If muscle weakness is due to neurological issues, consider therapies. Techniques addressing nerve function may prove effective.
If muscle imbalances are present, focus on strengthening weak muscles. Use techniques that lengthen shortened muscles.
If pain is a factor, address the underlying cause of the pain. Modalities such as massage or heat may prove useful.
Intervention Strategies for Restoring Function
-
Strengthening exercises: Target specific weak muscles to improve their strength and endurance.
-
Stretching exercises: Lengthen shortened muscles to improve flexibility and range of motion.
-
Manual therapy: Address joint restrictions and muscle imbalances through hands-on techniques.
-
Neuromuscular re-education: Retrain the nervous system to activate muscles properly.
-
Nutritional support: Address any nutritional deficiencies that may be affecting muscle function.
By following this 5-step method, practitioners can effectively utilize MMT. They can identify imbalances, plan interventions, and restore function. This leads to improved patient outcomes.
Avoiding Pitfalls: Ensuring Accuracy in MMT Techniques
Having meticulously outlined the 5-step MMT method, it’s crucial to acknowledge the potential pitfalls that can compromise its accuracy and reliability. MMT, while a powerful diagnostic tool, is susceptible to errors if not performed with precision and attention to detail. The following section will explore common mistakes in MMT execution and emphasize the importance of consistent technique for obtaining meaningful and trustworthy results.
The Foundation of Accurate MMT: Precision and Consistency
The validity of MMT hinges on the precise and consistent application of the technique. Deviations from established protocols can introduce confounding variables, leading to misinterpretations and ultimately, inaccurate diagnoses.
MMT is not merely about testing muscle strength; it’s about evaluating the neuromuscular system’s response under specific, controlled conditions. Any inconsistency in these conditions undermines the integrity of the assessment.
Common Errors in MMT Performance: A Critical Examination
Several common errors can creep into MMT practice, compromising its accuracy. Recognizing and actively avoiding these pitfalls is paramount for any practitioner.
Improper Patient Positioning: Skewing the Results
One of the most frequent errors is incorrect patient positioning. Each muscle test has a specific position designed to isolate the target muscle and minimize the influence of synergists or antagonists.
If the patient is not properly positioned, other muscles may compensate, giving a false impression of strength in the muscle being tested. Always refer to reliable anatomical resources to ensure accurate positioning.
Inconsistent Pressure Application: A Subjective Variable
Another significant source of error lies in the inconsistent application of resistance. The pressure applied by the therapist should be gradual, steady, and appropriate for the muscle being tested.
Erratic or jerky movements, or pressure that is too light or too heavy, can obscure the true response of the muscle and lead to subjective interpretations.
Premature Break Tests: Rushing the Assessment
Rushing the test and applying too much force too quickly can cause a "break" regardless of the muscle’s true strength. This is especially true when testing muscles that may already be compromised.
Apply the correct slow, steady force over the prescribed period of time.
Therapist Bias and Subjectivity: Minimizing Influence
Therapist bias, whether conscious or unconscious, can also influence MMT results. This might involve anticipating a certain outcome or subconsciously applying more or less pressure based on preconceived notions.
Maintaining objectivity through standardized procedures and a clear understanding of anatomical principles is crucial to minimizing this bias.
Poor Communication and Patient Comprehension: Ensuring Cooperation
Effective communication with the patient is vital for accurate assessment. The patient must understand what is expected of them and how to respond during the test.
Unclear instructions or a lack of rapport can lead to patient confusion and inconsistent effort, affecting the reliability of the results.
The Ripple Effect: How Errors Lead to Inaccurate Diagnoses
The consequences of these errors extend beyond a simple misjudgment of muscle strength. Inaccurate MMT results can trigger a cascade of negative effects.
Misdiagnosis: A Foundation of Flawed Treatment
A misdiagnosis based on faulty MMT data can lead to inappropriate treatment interventions, potentially delaying recovery or even exacerbating the underlying condition.
Ineffective Treatment Strategies: Wasted Time and Resources
Even if a diagnosis is reasonably accurate, incorrect MMT information can result in the application of ineffective treatment strategies. If an issue is misinterpreted because of poor testing technique, resources may be used to treat something which is not there.
Reinforcing Compensation Patterns: Perpetuating Dysfunction
Incorrect treatment will reinforce compensatory patterns and perpetuate musculoskeletal dysfunction which can lead to chronic pain and limited mobility.
Cultivating Accuracy: Strategies for Mitigation
Mitigating these errors requires a multi-faceted approach, encompassing thorough training, meticulous technique, and a commitment to ongoing learning.
Rigorous Training and Education: Building a Solid Foundation
Comprehensive training in MMT techniques is essential. This should include detailed instruction on patient positioning, proper pressure application, and interpretation of results.
Continuous Self-Assessment and Peer Review: Refining Skills
Regular self-assessment and peer review can help identify and correct subtle errors in technique. This might involve recording and analyzing your own MMT performance or seeking feedback from experienced colleagues.
Adherence to Standardized Protocols: Ensuring Consistency
Adhering to standardized MMT protocols minimizes subjectivity and ensures consistency in assessment. This includes using established grading scales and documentation methods.
Cultivating Patient Trust and Rapport: Fostering Cooperation
Building trust and rapport with patients promotes clear communication and cooperation during the MMT process. Explaining the procedure thoroughly and addressing any concerns can help ensure that patients understand what is expected of them.
By diligently addressing these potential pitfalls, practitioners can significantly enhance the accuracy and reliability of MMT, unlocking its full potential as a valuable tool for assessing and restoring musculoskeletal function.
Real-World Applications: Clinical Scenarios and MMT in Practice
Having established a foundation in MMT techniques, it’s essential to understand how this method translates into tangible clinical applications. MMT is not just an academic exercise; it’s a dynamic tool used daily by therapists and practitioners to assess and address a wide range of patient needs. This section will explore the practical integration of MMT within diverse healthcare settings, examining its correlations with neurology, stress responses, and nutritional status.
MMT in the Clinical Setting: A Therapist’s Perspective
Manual Muscle Testing serves as a cornerstone in many therapeutic practices, providing immediate feedback on a patient’s neuromuscular health. Therapists utilize MMT as a diagnostic aid and a method for tracking treatment progress. Its applications span various disciplines, including physical therapy, chiropractic care, and athletic training.
-
Diagnostic Tool: MMT helps pinpoint areas of weakness or dysfunction, guiding therapists toward specific regions needing intervention.
-
Treatment Monitoring: By repeating MMT during the course of treatment, therapists can objectively measure improvements in muscle strength and function, adjusting the therapeutic approach as needed.
-
Personalized Treatment Plans: MMT results inform the development of customized treatment plans, targeting individual patient needs rather than applying a one-size-fits-all approach.
Neurological Connections: Unveiling the Brain-Muscle Relationship
The efficacy of MMT is deeply intertwined with the function of the nervous system. The ability of a muscle to resist external force depends on the intricate communication between the brain and the muscle fibers. A "weak" muscle may not necessarily indicate a problem within the muscle itself.
It could signify a disruption in the neurological pathways that control muscle activation. Conditions such as nerve impingement, spinal misalignments, or neurological disorders can all manifest as muscle weakness detectable through MMT. Therefore, MMT provides insights into the integrity of the nervous system’s control over muscle function.
Addressing Neurological Dysfunction with MMT
By identifying specific muscle weaknesses, practitioners can target interventions to restore proper neurological function. This might involve:
-
Chiropractic Adjustments: To correct spinal misalignments that interfere with nerve transmission.
-
Neural Mobilization Techniques: To release nerve entrapments and improve nerve glide.
-
Neuromuscular Re-education: To retrain the brain-muscle connection and improve motor control.
Stress and Muscle Function: The Mind-Body Connection
Chronic stress is a pervasive issue in modern society, and its impact extends far beyond mental and emotional well-being. Stress can profoundly influence muscle function, leading to imbalances and pain.
When the body is under stress, it activates the "fight-or-flight" response, triggering a cascade of hormonal and physiological changes. One consequence is increased muscle tension and altered muscle activation patterns. Certain muscles may become chronically overactive, while others become inhibited or weakened.
MMT as a Stress Indicator
MMT can serve as a valuable tool for assessing the impact of stress on the body. A practitioner may observe that certain muscles consistently test weak in patients experiencing high levels of stress. These weaknesses can often be correlated with specific emotional or mental stressors.
Nutrition and Muscle Strength: Fueling Optimal Performance
Optimal muscle function requires adequate nutrition. Deficiencies in essential nutrients can impair muscle strength and endurance, making individuals more susceptible to injury and fatigue.
-
Protein: Crucial for muscle repair and growth.
-
Vitamins and Minerals: Including magnesium, potassium, and vitamin D, play vital roles in muscle contraction and nerve function.
-
Electrolytes: Essential for maintaining fluid balance and nerve impulse transmission, impacting muscle performance.
Nutritional Assessment via MMT
While MMT is not a substitute for comprehensive nutritional testing, it can offer clues about potential nutritional imbalances. Certain muscle weaknesses may be associated with specific nutrient deficiencies. For example, weakness in the quadriceps muscle might suggest a need for increased protein intake, while calf muscle weakness could indicate electrolyte imbalances.
By combining MMT findings with a thorough dietary assessment, practitioners can develop personalized nutritional recommendations to support optimal muscle function and overall health.
Muscle Testing FAQs: Unlocking Your Body’s Secrets
Here are some frequently asked questions about muscle testing, a non-invasive technique to assess your body’s responses.
What exactly is muscle testing and what does it tell me?
Muscle testing, specifically the 5 stepmethod of manual muscle testing, is a technique used to evaluate the body’s neuromuscular response to a stimulus. It can help identify imbalances, sensitivities, or areas of weakness. It’s not a diagnostic tool, but rather a way to gain insight into your body’s needs.
Is muscle testing the same as strength testing in a gym?
No, it is different. The 5 stepmethod of manual muscle testing assesses subtle changes in muscle strength in response to a specific stimulus. It’s not about how much weight you can lift. It’s about the muscle’s ability to hold its position against gentle pressure when exposed to a trigger.
What types of stimuli can be used during muscle testing?
Various stimuli can be used, including foods, supplements, environmental factors, or even thoughts and emotions. The 5 stepmethod of manual muscle testing aims to identify how your body responds to these stimuli, which can provide clues about potential stressors or imbalances.
Can anyone perform muscle testing, or do I need special training?
While basic techniques can be learned, proper training is recommended for accurate and reliable results. The 5 stepmethod of manual muscle testing requires understanding of anatomy, physiology, and proper testing protocols. Seek guidance from a qualified practitioner for best results.
So, there you have it – a glimpse into the 5 stepmethod of manual muscle testing! Give these techniques a try, and you might just be surprised at what you discover about your own body’s inner workings. Happy testing!