Neurotransmitters

Neurotransmitters: Understand the Chemistry Behind Your Mood, Sleep and Focus

Disorders of the brain are among the most confusing and distressing health challenges we face. Depression, anxiety, insomnia, addiction, ADHD, autism, learning difficulties and chronic pain often involve more than one cause. One important part of the picture lies in our neurotransmitters that act as the “hormones of the brain.”

At the Nardella Clinic we offer urinary neurotransmitter testing to help clarify whether imbalances in these key chemicals are contributing to your symptoms.

What Are Neurotransmitters?

Neurotransmitters are chemical messengers made from essential amino acids, including serotonin, GABA, dopamine, adrenaline, noradrenaline, PEA, glutamate and acetylcholine. They regulate mood, sleep, memory, focus, stress resilience, cravings, addiction tendencies, pain perception and libido. When levels are too low, too high or out of balance, many mental, emotional and physical symptoms can occur.

Neurotransmitter Effects Chart

Neurotransmitter

Primary Roles

When Suboptimal (Low)

When Elevated (High)

Serotonin

Mood balance, sleep, appetite, digestion, pain regulation

Depression, anxiety, irritability, insomnia, cravings

Sedation, lethargy, emotional blunting

Dopamine

Motivation, reward, focus, motor control

Low motivation, poor focus, depression

Anxiety, hyperactivity, impulsivity

GABA

Calming, relaxation, sleep

Anxiety, tension, insomnia

Fatigue, cognitive slowing

Adrenaline

Stress response, alertness

Fatigue, low arousal

Anxiety, palpitations, sleep disruption

Noradrenaline

Focus, concentration, stress resilience

Poor concentration, low energy

Hypervigilance, irritability, insomnia

PEA

Mood elevation, attention

Low mood, poor focus

Agitation, insomnia

Glutamate

Learning, memory, main excitatory neurotransmitter

Cognitive slowing, low energy

Irritability, headaches, insomnia

Glycine

Inhibitory neurotransmitter, sleep, muscle control

Poor sleep, muscle tension

Sedation, lethargy

Acetylcholine

Memory, learning, motor control

Memory issues, brain fog

Agitation, overstimulation

Histamine

Wakefulness, immune function

Fatigue, cognitive slowing

Insomnia, anxiety, GI upset

Kynurenic Acid

Marker of neuroinflammation

Normal unless suppressed

Indicates neuroinflammation

Why Measure Neurotransmitters Through Urine?

Neurotransmitters are produced in the brain, peripheral nervous system and gastrointestinal microbiome. Urinary neurotransmitter levels reflect whole-body neurotransmitter metabolism.

What Influences Neurotransmitter Levels?

Neurotransmitter metabolism is affected by nutrition, genetics, lifestyle, hormones, BMI, environmental exposures, inflammation, infection and substance use.

Who Benefits from Neurotransmitter Testing?

  • Depression, anxiety, irritability
  • Fatigue or low motivation
  • Insomnia or unrefreshing sleep
  • Brain fog or memory problems
  • Addictions or cravings
  • Chronic pain or illness
  • Effects of concussion
  • ADHD, autism, or learning challenges

How Nardella Clinic Uses Your Results

We integrate neurotransmitter results with clinical history and other diagnostics to create personalized treatment strategies, identify nutrient needs, evaluate inflammatory patterns and track treatment effectiveness.

Schedule Lab Test Consult

Please fill out the form below to begin the lab testing consultation process. We will be in touch with you right away to finalize your information.

Lab Testing Form (Short)