What Neurotransmitters are associated with Anxiety?

Throughout our lives, it is completely normal to experience both pleasant and unpleasant emotions. Anxiety, among others, is one of those emotions that can give us a hard time if we don't know how to manage it correctly. Sometimes we encounter situations that make us feel anxious, which can manifest itself in different ways, like that knot in your stomach, your heart beating faster, or a mind full of concerns. All of these responses can be treated with therapy, but they hide behind a torrent of chemical reactions, which occur in our brain and extend to our entire nervous system.

We talk a lot about anxiety and how to manage it from a psychological perspective, but it's also important to understand it from a biological point of view. Anxiety is a natural response of our body to situations of real or perceived danger, but this emotion also has roots in our biological processes. It is essential to understand how anxiety is related to our body, since this understanding can influence the choice of the type of therapy and treatment, in addition to being essential for the evolution, well-being and improvement of the patient.

In this article, Let's see what neurotransmitters are associated with anxiety and the biological response that it has on us.

What are neurotransmitters?

Before starting to identify which neurotransmitters have a greater relationship and function in the anxious response, it is important delineate what these chemical messengers are and how they play a crucial role in the functioning of our brain and system highly strung. Neurotransmitters are chemicals that act as communication bridges between nerve cells, also known as neurons. These neurons are the fundamental units of our nervous system. and they form complex networks that extend throughout the body, allowing us to experience and respond to different stimuli and situations.

Communication between neurons is essential for a wide variety of functions, from simple muscle movements to complex mental processes such as thinking and emotions. This is where neurotransmitters come into play. Imagine neurons as neighbors that. They need to talk to each other, and neurotransmitters are messengers that deliver important information from one house to another.

When one neuron wants to transmit a message to another, it releases neurotransmitters into the space between them, called the "synapse". These neurotransmitters travel across the synapse and attach to receptors on the surface of the receiving neuron, like a key fits into a lock. This interaction triggers a series of electrical and chemical events that allow the message to be transmitted between neurons. In this way all the emotions we feel are produced, including anxiety.

Neurotransmitters are not only an essential part of brain communication, they are also involved in regulating our mood, behavior, memory and a host of other cognitive and emotional. In short, they are the chemical messengers that allow our brain to function effectively and that play a crucial role in our experience of anxiety and other emotions.

• Related article: "Parts of the human brain (and functions)"

Neurotransmitters and anxiety

As we have mentioned, anxiety is a natural emotion that most people experience at some point in our lives. It can arise in stressful situations, before important events, or as a protective response to potential dangers. The connection that we will describe between anxiety and neurotransmitters focuses on the influence of these chemicals on our moods and emotions. Next, we will describe some of the main neurotransmitters associated with anxiety and its psychobiological response.

1. Serotonin

Serotonin, often called "the happiness neurotransmitter," plays a vital role in our mood and emotions. When serotonin levels are low, it can trigger anxiety symptoms, such as constant worry and restlessness.. This neurotransmitter helps regulate emotional balance and a feeling of well-being. Medications known as selective serotonin reuptake inhibitors (SSRIs) They increase serotonin levels in the brain and are commonly used to treat mood disorders. anxiety. Understanding serotonin allows us to approach anxiety from a more scientific and therapeutic perspective.

• You may be interested: "Serotonin: 6 effects of this hormone on your body and mind"

2. Dopamine

The dopamine, mainly associated with reward and pleasure, also influences anxiety.

An imbalance in dopamine levels can contribute to anxiety in several ways. Too much dopamine can trigger hyperactivity, agitation, and obsessive thoughts., which can increase anxiety. On the other hand, a dopamine deficiency can lead to apathy and lack of interest in life, which, in turn, can increase anxiety due to feelings of hopelessness. Understanding how dopamine mediates anxiety gives us a more complete view of the complexities of our emotions and behaviors.

3. GABA

Gamma-aminobutyric acid, or GABA, is an inhibitory neurotransmitter that plays an essential role in the regulation of anxiety. Its main function is to reduce nervous activity in the brain, promoting relaxation and calm. When GABA levels are low, the brain can become overactive, which often manifests itself in anxiety symptoms, such as nervousness and tension. Understanding the role of GABA in anxiety is essential, as it gives us information about how imbalances in this neurotransmitter can contribute to anxiety disorders and how certain therapies and medications can work to restore that balance and alleviate anxiety. distress.

4. Other neurotransmitters

In addition to serotonin, dopamine, and GABA, other neurotransmitters also play a role in anxiety. Norepinephrine, for example, is involved in the fight-or-flight response, which can lead to anxiety in stressful situations. Glutamate, an excitatory neurotransmitter, may contribute to anxiety when its activity is unbalanced. Although these neurotransmitters are less known in relation to anxiety, their influence is significant. Understanding the complexity of neurotransmitters in the context of anxiety allows us better appreciate the interconnectedness of these chemical messengers in our emotions and behaviors.