Hot and Cold Flashes and Anxiety
Anxiety disorder affects millions of people worldwide. It is more than just feeling nervous, worried, or anxious—it is a multifaceted condition that can affect the entire body.
Hot flashes, a sudden and intense sensation of heat that can be accompanied by sweating and flushing, and cold flashes, a sudden and intense episode of feeling chilled, are common anxiety disorder symptoms, especially anxiety and panic attack symptoms.
This article explains the connection between anxiety and hot and cold flashes, common symptom descriptions, causes, and practical strategies for managing and finding relief from this uncomfortable symptom.
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Hot and Cold Flashes Common Anxiety Symptom Descriptions:
- A sudden and unexpected hot or cold flash.
- Uncontrollable hot or cold sweats no matter what you do or wear.
- Unusually hot for a while and then unusually cold for a while, or vice versa.
- Episodes of feeling overly hot or cold no matter what you do and for no apparent reason.
- Sudden hot and cold flashes that occur randomly and for no apparent reason.
- These episodes can be so profound that you sweat profusely or feel like you are freezing, and no matter what you do, you can’t get warm or cool off.
- Sudden episodes of feeling overly warm and sweaty or cold and frigid.
Some people experience just hot flashes and sweats, some experience just cold flashes and sweats, and some get a combination of both hot and cold flashes and sweats that can interchange, such as having a hot flash first, then a cold flash, then a hot flash again, and so on.
Hot and Cold flashes can:
- Occur occasionally, frequently, or persistently.
- Precede, accompany, or follow an escalation of other anxiety symptoms or occur by itself.
- Precede, accompany, or follow a period of nervousness, anxiety, fear, and stress, or occur "out of the blue" for no reason.
- Range in intensity from slight, to moderate, to severe.
- Come in waves where it’s strong one moment and eases off the next.
- Occur for a while, subside, and then return for no reason.
- Change from day to day, moment to moment, or intermittently throughout your entire struggle with anxiety disorder.
All the above combinations and variations are common.
To see if anxiety might be playing a role in your symptoms, rate your level of anxiety using our free one-minute instant results Anxiety Test, Anxiety Disorder Test, or Hyperstimulation Test.
The higher the rating, the more likely anxiety could be contributing to or causing your anxiety symptoms, including feeling like impending doom symptoms.
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Causes
Medical Advisory
Talk to your doctor about all new, changing, persistent, and returning symptoms as some medical conditions and medications can cause anxiety-like symptoms.
There are many reasons why anxiety can cause hot and cold flashes and sweats. Here are the most common:
1. Anxiety-Activated Stress Response
Anxious behavior, such as worry, activates the stress response, which secretes stress hormones into the bloodstream, where they travel to specific locations to immediately prepare the body for emergency action – to fight or flee. This instinctual survival reaction is often referred to as the Fight or Flight Response.[1][2]
Visit the “Stress Response” article for the many ways it can affect the body.
An active stress response can cause hot and cold flashes in many ways, for example, the stress response:
- Quickly converts the body’s energy reserves into “fuel” (blood sugar) to instantly boost energy, increasing heart rate, respiration, and metabolism. These increases can cause fluctuations in body temperature, causing hot and cold flashes.
- Stimulates the sympathetic nervous system, increasing nervous system activity to be more sensitive and reactive to danger. Increased sympathetic nervous system activity can also cause fluctuations in body temperature, resulting in hot and cold flashes.
- Shunts blood to parts of the body vital to survival, such as the brain, arms, legs, and vital organs, and away from parts less vital for survival, such as the stomach, digestive system, and skin. It accomplishes this by constricting blood vessels in certain parts of the body and dilating them in others. Shunting blood can cause hot and cold flashes.
- Tightens muscles to make the body more resilient to injury. Sudden muscle tension changes can also cause hot and cold flashes.
- Increases respiration to accommodate the increase in heart rate and increases perspiration to keep the body cool and expel toxins. Sudden respiration and perspiration changes can cause hot and cold flashes.
Any combination of stress response changes can cause acute hot and cold flashes and sweats.
An active stress response is a common cause of acute hot and cold flashes and sweats.
2. Stress-Response Hyperstimulation
When stress responses occur infrequently, the body recovers relatively quickly from its changes. However, frequently activated stress responses, such as from overly anxious behavior, can prevent the body from completely recovering. Incomplete recovery can leave the body in a state of semi-stress-response-readiness, which we call “stress-response hyperstimulation” since stress hormones are powerful stimulants.
Hyperstimulation is also often referred to as “hyperarousal,” “HPA axis dysfunction,” or “nervous system dysregulation” [3][4][5][6][7][8].
Visit our “Hyperstimulation” article for more information about the many ways hyperstimulation can affect the body and how we feel.
Hyperstimulation can cause the changes of an active stress response even though a stress response hasn’t been activated.
Just as an active stress response can cause acute hot and cold flashes and sweats, hyperstimulation can cause chronic hot and cold flashes and sweats.
As long as the body is hyperstimulated, even slightly, it can cause symptoms of any type, number, severity, frequency, duration, and at any time, including hot and cold flashes and sweats.
Chronic hot and cold flashes and sweats are common symptoms of hyperstimulation.
But that’s not all. Hyperstimulation can cause hot and cold flashes and sweats in other ways. For instance, hyperstimulation can cause:
- Nervous System Excitation and Dysregulation: A chronically stimulated nervous system can act erratically and cause all kinds of nervous and regulatory system problems, such as hot and cold flashes and sweats.
- Homeostatic Dysregulation: Homeostasis is the body’s ability to automatically maintain a stable internal environment despite changes in the external environment. Hyperstimulation can cause homeostatic dysregulation, leading to internal regulation problems, which can affect the nervous and regulatory systems, causing problems with internal temperature regulation.
- Hormone changes: Hormones play a crucial role in homeostasis and many bodily functions, which can affect the nervous, sensory, and regulatory systems. Since stress hormones affect other hormones, hyperstimulation can cause nervous and regulatory system problems, such as hot and cold flash symptoms.
- Sleep disruption and fatigue: Hyperstimulation can interfere with sleep and tax the body’s energy resources harder and faster. Sleep disruption and fatigue can increase circulating cortisol levels, affecting the nervous, sensory, and regulatory systems, causing hot and cold flashes and sweats.
As long as the body is hyperstimulated, even slightly, it can exhibit chronic hot and cold flashes and sweat symptoms.
Hyperstimulation is a common cause of chronic hot and cold flashes and sweats.
3. Other Factors
Other factors can create stress and cause anxiety-like symptoms, as well as aggravate existing anxiety symptoms, including:
- Medication
- Recreational drugs
- Stimulants
- Sleep deprivation
- Fatigue
- Hyper and hypoventilation
- Low blood sugar
- Nutritional deficiencies
- Dehydration
- Hormone changes
- Pain
Select the relevant link for more information.
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Treatment
When hot and cold flashes are caused or aggravated by other factors, addressing those factors can reduce and eliminate them.
When this symptom is caused by apprehensive behavior and the accompanying stress response changes, calming yourself will end the active stress response and its changes. This anxiety symptom should subside as your body recovers from the active stress response.
Keep in mind that it can take up to 20 minutes or more for the body to recover from a major stress response. But this is normal and needn’t be a cause for concern.
When this symptom is caused by hyperstimulation (chronic stress), eliminating hyperstimulation will end this anxiety symptom.
You can eliminate hyperstimulation by:
- Reducing stress.
- Containing anxious behavior (since anxiety stresses the body).
- Regular deep relaxation.
- Avoiding stimulants.
- Regular light to moderate exercise.
- Getting regular good sleep.
- Eating a healthy diet of whole and natural foods.
- Passively-accepting your symptoms until they subside.
- Being patient as your body recovers.
Visit our “60 Natural Ways To Reduce Stress” article for more ways to reduce stress.
Recovery Support members can view chapters 5, 6, 7, 14 and more for more detailed information about recovering from hyperstimulation and anxiety disorder.
As the body recovers from hyperstimulation, it stops sending symptoms of hyperstimulation, including hot and cold flashes.
However, eliminating hyperstimulation can take much longer than most people think, causing symptoms to linger longer than expected. This is why patience is required as the body recovers.
In the meantime, remember, as long as the body is even slightly hyperstimulated, it can exhibit symptoms of any type, number, intensity, duration, frequency, and at any time, including hot and cold flashes.
Even so, since this symptom is a common symptom of stress, including anxiety-caused stress, it's harmless and needn't be a cause for concern. It will subside when unhealthy stress has been eliminated, and the body has had sufficient time to recover and stabilize. Therefore, there is no reason to worry about it.
Since worrying and becoming upset about anxiety symptoms stress the body, these behaviors can interfere with recovery.
Passively accepting your symptoms – allowing them to persist without reacting to, resisting, worrying about, or fighting them – while doing your recovery work will cause their cessation in time.
Acceptance, practice, and patience are key to recovery.
Since the body can take a long time to recover from hyperstimulation, it's best to faithfully work at your recovery despite the lack of apparent progress. However, you will succeed in time if you persevere with your recovery work.
You must also do your recovery work FIRST before your body can recover. The cumulative effects of your recovery work will produce results down the road. And the body's stimulation has to diminish before symptoms can subside.
Nevertheless, eliminating hyperstimulation will bring results in time!
Focusing on your sensations and symptoms makes them more pronounced. If you'd like to lessen their impact, learn to focus your attention elsewhere through distraction, enjoying your hobbies, undertaking pleasing and calming activities, regular deep relaxation, and recalling pleasant memories or experiences.
Short-term strategies
While your goal is to address this symptom for the long term using the strategies mentioned, there are a few things you can do to reduce this symptom in the meantime:
- Keep yourself calm – Keeping yourself calm can quickly reduce and shut off this symptom. The better you calm yourself, the faster you can minimize and eliminate this symptom.
- Contain your worry and fretting – Containing worry and fretting can help keep you calm. As mentioned above, the better you contain, the faster you can minimize your sensations and symptoms, including this one.
- Get regular good sleep – Regular good sleep can help reduce stress- and anxiety-caused sensations and symptoms, including this one.
- Reduce as much stress as you can – The more stressed the body becomes, the more symptomatic it can become. Reducing stress will reduce stress’s sensations and symptoms, including this one.
- Avoid stimulants – Stimulants can irritate the nervous system, which can aggravate existing stress- and anxiety-caused sensations and symptoms. Eliminating stimulants can help calm down the nervous system, making it less reactive and symptomatic.
Therapy
Unidentified and unaddressed underlying factors cause issues with anxiety. As such, they are the primary reason why anxiety symptoms persist.
Addressing your underlying factors (Level Two recovery) is most important if you want lasting success.
Addressing Level Two recovery can help you:
- Contain anxious behavior.
- Become unafraid of anxiety symptoms and the strong feelings of anxiety.
- End anxiety symptoms.
- Successfully address the underlying factors that so often cause issues with anxiety.
- End what can feel like out-of-control worry.
All our recommended anxiety therapists have had anxiety disorder and overcame it. Their personal experience with anxiety disorder and their Master's Degree and above professional training give them insight other therapists don't have.
If you want to achieve lasting success over anxiety disorder, any one of our recommended therapists would be a good choice.
Working with an experienced anxiety disorder therapist is the most effective way to treat anxiety disorder, especially if you have persistent symptoms and difficulty containing anxious behavior, such as worry.[9][10][11]
In many cases, working with an experienced therapist is the only way to overcome stubborn anxiety.
Research has shown that therapy is the most effective treatment for anxiety disorder, and distance therapy (via phone or the Internet) is equally, if not more effective, than face-to-face in-person therapy.[12][13][14]
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FAQ
Can anxiety cause hot and cold flashes?
Yes. Anxiety activates the stress response, which prepares the body for immediate action. Some preparations include increasing metabolism, respiration, and perspiration, changing blood flow, and altering homeostatic regulation. Any one of these changes can cause hot and cold flashes.
Can panic attacks cause hot and cold flashes?
Yes. Since panic attacks trigger high-degree stress responses, they, too, can cause hot and cold flashes because of how stress responses affect the body. This article explains how anxiety and stress responses can cause a wide range of symptoms, including hot and cold flashes.
Are anxiety hot and cold flashes dangerous?
No, anxiety-caused hot and cold flashes aren’t dangerous. They are temporary symptoms that typically subside when anxious behavior and the stress it causes are addressed. However, it’s wise to discuss all new, changing, persistent, and returning symptoms with your doctor to ensure your symptoms are solely anxiety-related.
How do I get rid of anxiety hot and cold flashes?
Addressing your anxious behavior and reducing stress will generally reduce and eliminate anxiety-caused hot and cold flashes. This article explains this in more detail.
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Prevalence
In an online poll we conducted, 78 percent of respondents said they experienced hot and cold flashes due to their anxiety.
NOTE: This symptom can be associated with and aggravated by pre-menopause and menopause. Women may want to discuss this symptom with their doctor before concluding that it is anxiety- and stress-related only. While most women enter pre-menopause in their 40s, some can experience pre-menopause symptoms 10 to 15 years before menopause begins.
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Common Anxiety Symptoms
Additional Resources
- For a comprehensive list of Anxiety Disorders Symptoms Signs, Types, Causes, Diagnosis, and Treatment.
- Anxiety and panic attacks symptoms can be powerful experiences. Find out what they are and how to stop them.
- How to stop an anxiety attack and panic.
- Free online anxiety tests to screen for anxiety. Two minute tests with instant results. Such as:
- Anxiety 101 is a summarized description of anxiety, anxiety disorder, and how to overcome it.
Return to our anxiety disorders signs and symptoms page.
anxietycentre.com: Information, support, and therapy for anxiety disorder and its symptoms, including Hot and Cold Flashes anxiety symptoms.
References
1. Chu, Brianna, et al. “Physiology, Stress Reaction.” StatPearls, 7 May 2024.
2. Godoy, Livea, et al. "A Comprehensive Overview on Stress Neurobiology: Basic Concepts and Clinical Implications." Frontiers In Behavioral Neuroscience, 3, July 2018.
3. Elbers, Jorina, et al. "Wired for Threat: Clinical Features of Nervous System Dysregulation in 80 Children." Pediatric Neurology, Dec 2018.
4. Yaribeygi, Habib, et al. “The Impact of Stress on Body Function: A Review.” EXCLI Journal, Leibniz Research Centre for Working Environment and Human Factors, 2017.
5. Kinlein, Scott A., et al. “Dysregulated Hypothalamic–Pituitary–Adrenal Axis Function Contributes to Altered Endocrine and Neurobehavioral Responses to Acute Stress.” Frontiers In Psychiatry, 13 Mar. 2015.
6. Teixeira, Renata Roland, et al. “Chronic Stress Induces a Hyporeactivity of the Autonomic Nervous System in Response to Acute Mental Stressor and Impairs Cognitive Performance in Business Executives.” Current Neurology and Neuroscience Reports., U.S. National Library of Medicine, 2015.
7. Nicolaides, Nicolas, et al. "Stress, the stress system and the role of glucocorticoids." Neuroimmunomodulation, 2015.
8. Marks, David. "Dyshomeostasis, obesity, addiction and chronic stress." Health Psychology Open, Jan 2016.
9. Hofmann, Stefan G., et al. “The Efficacy of Cognitive Behavioral Therapy: A Review of Meta-Analyses.” Cognitive Therapy and Research, U.S. National Library of Medicine, 1 Oct. 2012.
10. Leichsenring, Falk. “Is Cognitive Behavioral Therapy the Gold Standard for Psychotherapy?” JAMA, American Medical Association, 10 Oct. 2017.
11. DISCLAIMER: Because each body is somewhat chemically unique, and because each person will have a unique mix of symptoms and underlying factors, recovery results may vary. Variances can occur for many reasons, including due to the severity of the condition, the ability of the person to apply the recovery concepts, and the commitment to making behavioral change.
12. Kingston, Dawn.“Advantages of E-Therapy Over Conventional Therapy.” Psychology Today, Sussex Publishers, 11 Dec. 2017.
13. Markowitz, John, et al. “Psychotherapy at a Distance.” Psychiatry Online, March 2021.
14. Thompson, Ryan Baird, "Psychology at a Distance: Examining the Efficacy of Online Therapy" (2016). University Honors Theses. Paper 285.