Norepinephrine (NE) is both a neurotransmitter and a hormone. Also called noradrenaline, NE plays a key role in the "fight or flight" response by spiking your heart rate and blood pressure. NE is similar to adrenaline and many experts believe it helps determine your basic levels of stimulation and arousal. It's is linked to anxiety and depression. High levels are associated with feelings of joy, and sometimes euphoria.
Since joy and euphoria aren't exactly typical of fibromyalgia (FMS) and chronic fatigue syndrome (CFS or ME/CFS), it's no surprise that research suggests most people with these conditions have low NE levels.
The connection to low NE is more definite in FMS, but a growing body of research shows people with ME/CFS have an imbalance between NE and dopamine, and treatments increasing the availability of the neurotransmitter are successful in some cases.
Neurotransmitter function is complicated and neurotransmitters work with each other in a complex way we're just beginning to understand. Still, experts have been able to associate different neurotransmitter imbalances with certain conditions and symptoms and find some ways to change their activity.
NE activity takes place in several areas of your brain, and even elsewhere around the body (where it acts as a hormone). Those different areas of your brain use NE differently, and they contain several different kinds of receptors that also influence how NE is used.
Low NE levels are associated with these symptoms:
We don't yet know why NE is low in people with FMS and ME/CFS. Constant fear and anxiety are known causes of low NE, so people who live with a lot of those emotions may be especially at risk for developing these illnesses.
Making More Available
To make more NE available to your brain, you can take serotonin norepinephrine re-uptake inhibitors (SNRIs), such as Cymbalta (duloxetine) or Savella (milnacipran); or amphetamines, including Adderall (dextroamphetamine), which is often used to treat ADD.
Several things that are part of life are generally believed to boost NE levels in your brain, including:
- Quality sleep
- Meeting goals (even small ones!)
- Aggression (this is NOT an excuse for bad behavior - maybe try aggressive video games?)
We don't have a lot of research confirming that food can boost NE levels in your brain, and it would likely take prohibitively huge amounts to have the desired effect. In spite of the lack of hard evidence, some practitioners say they've seen clinical evidence to support diets high in the following:
- Theanine/L-Theanine (a unique amino acid in black and green tea, also available as a supplement)
- Apples, bananas & watermelon
- Beets, beans & legumes
- Wheat germ
While it's generally safe to eat these foods, don't expect miracles. It's also best to avoid extreme dietary changes and to introduce changes slowly. Tracking your dietary changes and symptoms in a symptom journal can give you an accurate gauge of what may be helping. Be sure to involve your doctor in your decisions.
Symptoms of High NE Levels
When you take medications that raise your NE levels, you might be told to notify your doctor if you become "too happy." That's because it's a sign of high NE levels, which can also cause symptoms such as:
- Worry, anxiety, irritability and jumpiness
- Fears of crowds and confined places
- Impaired concentration
- Restless sleep
- Muscle tension or cramps
Many anxiety disorders are associated with too much NE. The effects of several street drugs, including cocaine and illegal amphetamines, stem from increased NE levels and the resulting physical arousal and feelings of elation, which is part of what makes these drugs addictive.
Be sure to include your doctor in any decisions about increasing your NE levels and notify him or her if you experience any symptoms of too much NE.
- Serotonin Dysregulation: Symptoms & Treatment Options
- Low Dopamine: How It Makes You Feel & How to Fix It
- GABA & Glutamate: Calmness vs. Stimulation & Over-stimulation
Amino Acids. 2008 Jan 15. [Epub ahead of print] All rights reserved. "Theanine, gamma-glutamylethylamide, a unique amino acid in tea leaves, modulates neurotransmitter concentrations in the brain striatum interstitium in conscious rats."
Expert Review of Neurotherapeutics. 2008 Jun;8(6):917-27. "Diagnostic and treatment challenges of chronic fatigue syndrome: role of immediate-release methylphenidate."
Goldstein, J. Alasbimn Journal2(7): April 2000. AJ07-5. "The Pathophysiology and Treatment of Chronic Fatigue Syndrome and Other Neurosomatic Disorders: Cognitive Therapy in a Pill."
Psychoneuroendocrinology. 2008 Feb;33(2):188-97. All rights reserved. "Genetic evaluation of the serotonergic system in chronic fatigue syndrome."
2008 University of Maryland Medical Center. All rights reserved. "Chronic Fatigue Syndrome"