- Guy Trevers
- Feb 3
- 4 min read
Updated: Feb 4
If you are one of the 8 million adults who live with an anxiety disorder, it can be hard to know what's actually happening to you when you experience and symptom of anxiety - especially when feeling overwhelmed and rather uncomfortable! All we know is that it doesn't feel good, and we're likely to look for any way to stop it. This might end up with us attempting to ignore the anxious feelings or thoughts, or steer clear of the situations that make us anxious in the first place!
It can be useful when we first start exploring anxiety, to try and understand what's going on at a neurological level (i.e. your brain). With this knowledge we can begin to understand the different methods to which we can try and change our relationship to anxiety and lessen the power we allow it.
Your Brain
The brain is a complex organ, but to make things simpler, we're just going to focus on three different parts: the thalamus, the cortex and the amygdala.

Thalamus: this part detects sensory information - what we see, hear, smell, feel.
Cortex: this part is about thinking - it will create thoughts about the sensory information it receives.
Amygdala: the brains emotional computer. It evaluates sensory information it receives and looks for emotional significance or potential threats - and sends out a response.
This could be an anxiety response, like fight, flight, freeze or fawn.
To make this easier to understand, here's an example of how these different parts communicate:
Imagine you walk into your house, the lights are off and you see a dark coat hanging on a door.
The dark coat is seen by our thalamus, which sends this information to both the cortex and the amygdala. (Crucially, the amygdala receives the information before the cortex).
The amygdala is activated. Trying to protect us, it assumes the dark coat is a scary monster and sends the signal to feel fear.
The cortex thinks about this information, and realises that it's just your coat you left there earlier. The cortex sends this new information to the amygdala, saying that we are safe.
The amygdala receives the new information to stand down. However, it processed the sensory information first, so we have to wait a little time for the fear response to subside.

This is a simple example of how our amygdala, whilst trying to protect us, can send out incorrect signals to our body that we are in danger. It's trying it's best, but it acts quickly and can make mistakes. These signals can result in all the symptoms of anxiety we experience: shallow breathing, tight chest, sweating, blushing, tingling, brain fog - and many more.
This is an incredibly useful response to have when we are in real danger - you would want your brain to act quickly if you were about to be eaten by a sabre-tooth tiger! However, it's not so useful when you are doing a much less dangerous task, like speaking, driving or attending a party.
It can be helpful to remember this simple question when our amygdala is activated:
"Is this danger or discomfort?"
This is a simple act of noticing what we're experience (the anxiety symptom) and to note whether the signal is incorrect or not. Danger requires immediate action to get to safety. Discomfort is exactly that - uncomfortable, but doesn't require safety measures and will dissipate on it's own.
Learning and Re-Learning
Our amygdala is great at learning things. Through experiences in our lives, the amygdala will attach emotions to objects, images and situations - like post-it notes! What's great about this is that the amygdala can also re-learn - it can attach a different emotional post-it note to something. Here's an example:
A child is stroking a cat, the cat then scratches him and runs away. Through this experience the amygdala learns that cats = danger.
"I might get scratched", the amygdala thinks. "Better avoid all cats from now on".
Now the child has an emotional response of fear to cats. Imagine how powerful this may be if he continued to have many scary experiences with cats! To try and be safe, the child attempts to avoid cats at all costs. Although this behaviour appears to be keeping him safe, it is just re-enforcing the unhelpful idea that all cats are dangerous - when actually it was just one cat.
One day, the child is at his friends house and their cat comes over to him. The child's amygdala immediately activates, making him feel very afraid. The cat then jumps on his lap and licks him - eventually the child manages to stroke the cat and it begins purring. The child's fear begins to subside as he realises he is not in danger.

Success! The amygdala has re-learned something about cats - that perhaps they don't mean danger after all. As much as many people tried to tell the child that cats weren't dangerous - it was the experience of being afraid, and then realising he is not in danger that allowed his amygdala to re-learn. It learns through experience!
Although this is a simple example, it shows that our brain is wired to learn and re-learn things all the time. With continued experiences that allow for a positive result, rather than a negative one, we can re-train our brains not to jump to so many conclusions. Thanks brain!



