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Writer's pictureSusette Jarvis

What Anxiety Does to Your Brain

Updated: Nov 7, 2024

The Science Behind Your Mental Health



Anxiety is a common mental health issue that affects millions of people worldwide. It's a feeling of fear, apprehension, or nervousness that can be triggered by various factors, such as stress, trauma, or genetics. While anxiety is a normal and necessary part of our lives, too much of it can be detrimental to our health, especially to our brain. In this blog post, we will explore what anxiety does to your brain, the science behind it, and the steps you can take to manage it effectively.


Anxiety and the Brain

Anxiety is a complex emotion that involves multiple brain regions and neurotransmitters. When you experience anxiety, your brain sends signals to the hypothalamus, a small but powerful region located in the middle of the brain. The hypothalamus activates the sympathetic nervous system, triggering the release of adrenaline and cortisol, two stress hormones that prepare your body for the "fight or flight" response.


Cortisol and Anxiety

Cortisol is a hormone produced by the adrenal glands, two small glands located on top of the kidneys. Cortisol is released in response to stress, and it helps regulate blood sugar levels, blood pressure, and immune function. However, when cortisol levels are elevated for long periods, it can have damaging effects on your brain and body.

Elevated cortisol levels can lead to chronic stress, which is a major risk factor for anxiety disorders. Chronic stress can cause the amygdala, a small but crucial part of the brain responsible for processing emotions, to become overactive. This hyperactivity can make you more sensitive to stress and more prone to anxiety disorders.

Additionally, prolonged exposure to cortisol can cause hippocampal atrophy, or the shrinking of the hippocampus, a region of the brain responsible for forming and storing new memories. This can affect your ability to learn and remember new information and increase the risk of cognitive decline.

Furthermore, cortisol can affect prefrontal cortex function, which is responsible for executive functions, such as decision-making, problem-solving, and emotional regulation. Chronic exposure to cortisol can impair prefrontal cortex function, making it harder for you to control your emotions and make rational decisions.






Managing Anxiety and Cortisol

Managing your anxiety effectively can help reduce the damaging effects of cortisol on your brain and body. There are many strategies you can use to manage your anxiety, such as:

  • Mindfulness meditation: Mindfulness meditation has been shown to reduce stress and anxiety by increasing prefrontal cortex activity and decreasing amygdala activity.

  • Exercise: Exercise can reduce stress and anxiety by releasing endorphins, natural mood-boosting chemicals, and decreasing cortisol levels.

  • Cognitive-behavioral therapy: Cognitive-behavioral therapy is a form of psychotherapy that helps you identify and change negative thought patterns and behaviors that contribute to anxiety.

  • Relaxation techniques: Relaxation techniques, such as deep breathing, progressive muscle relaxation, and guided imagery, can help reduce stress and anxiety.


Conclusion

Anxiety can be a debilitating mental health issue that affects many people worldwide. It's important to understand the science behind anxiety and how it affects your brain. Chronic stress and elevated cortisol levels can lead to structural and functional changes in your brain, affecting your cognition, mood, and behavior. By managing your anxiety effectively, you can improve your mental health and reduce the damaging effects of cortisol on your brain and body. Remember to take care of yourself and seek help if you need it.


Reach out to me with any questions you can put them below or privately DM me on my Facebook page or Instagram or send me an email at susette@susette-holistichealing.com


Love and light to you all 🙏🙌



SUSETTE JARVIS

DipCHP/DipC


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