can anxiety cause you to pass out


Can Anxiety and Stress Cause Fainting?

Could it be that you faint in the face of environmental and emotional stimuli and stress?

If you want to know more about fainting due to stress, anxiety and emotional attacks, we recommend that you read more. Before saying whether fainting can be caused by stress or anxiety, we need to give a precise definition of fainting.


What you will read next:


What is fainting?

What are the types of fainting?

What are the symptoms that a person may experience when fainting under anxiety and stress?

Causes of fainting

What is vasovagal syncope?

What are the signs and symptoms during vasovagal syncope following stressful situations?

Why does a person get syncope?

When to see a doctor



How can syncope be prevented in situations of anxiety and stress?




What is fainting?

Fainting occurs when a person loses consciousness for a short period of time due to insufficient oxygen reaching the brain. Fainting usually lasts from a few seconds to a few minutes. Usually before fainting there is a feeling of vertigo, weakness, headache and unpleasant feelings of dizziness.

Usually After a few minutes, the person returns to normal. In these cases, when the person returns to normal after a few minutes, it is said that fainting has occurred, and only in these cases, no special treatment is needed, and it does not cause concern as long as there is no sign of a serious underlying disorder.

So, The cause of fainting is a lack of oxygen in the brain. Deprivation and restriction of oxygen supply to brain tissue can have a variety of causes, such as hypotension in people who have a sudden drop in blood pressure or people with heart pumping disorders.


What are the types of fainting?

The fainting classification is described as:

  1. Vasovagal syncope, which is caused by stress, Emotional encounters, seeing blood, or standing for long periods of time. In these people, a sudden drop in blood pressure occurs and the person faints.


  1. Another type of fainting is due to the pressure on the carotid artery in the neck.

  1. Positional fainting or a condition that results from a cough or bowel movement or digestive problems.


What are the symptoms that a person may experience when fainting under anxiety and stress?

We said that a person may experience Vasovagal syncope due to stress. In these cases, the person may feel suffocated or have a low level of consciousness.

Usually before the onset of signs and symptoms below one or more of them may occur, feeling hot, lightheadedness, feeling heavy in the legs, Blurred vision, blacking out, dizziness, nausea and vomiting, suffocation and sweating.


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Causes of fainting

In the above section, we have classified the types of fainting and said that they are vasovagal events that usually lead to fainting in people under stress and problems and bad emotional news.

Other causes that can cause symptoms include anemia and structural problems in the circulatory system. Poisonings, such as carbon monoxide poisoning, can also lead to fainting.

But the consequence of stressful situations and stress and problems is that, due to the drop in blood pressure, the supply of oxygen to the brain cells is temporarily interrupted.

At this time, the person loses consciousness and may fall.


What is vasovagal syncope?

We said that people may faint due to stressful and anxious situations and heavy emotional news, and even due to the body's excessive reaction to certain stimuli such as seeing blood and Severe stress, and vasovagal has occurred in these cases and occasions.

Vasovagal syncope actually occurs when a person reacts strongly and excessively to certain stimuli, such as seeing blood and severe mental pressures and stresses.

These conditions are also called anesthetic syncope and neurocardiogenic syncope.

During vasovagal syncope, the heart rate and blood pressure suddenly drop sharply. The drop in heart rate and blood pressure decrease blood flow to the brain, Oxygenation to brain cells is reduced and stopped, and temporarily loses consciousness.

Syncope is usually uncomplicated and does not require special treatment.

But the important point is that when syncope occurs, the body, head, face and skull may be damaged, although the doctor will perform tests to rule out more serious causes such as heart problems.


What are the signs and symptoms during vasovagal syncope following stressful situations?

People with vasovagal syncope may experience some of the following manifestations

  • dizziness
  • headache
  • Nausea
  • Heat sensation
  • Blurred vision
  • tunnel Vision

A tunnel is a condition in which a person's range of vision is limited and the person can only see objects in front of them.

  • Pale skin
  • yawning
  • and a feeling of warmth

are other symptoms.

If the patient's surroundings witness an accident during syncope, the following may be obvious to them:  

  • Abnormal and convulsive movements
  • Slowing and weakening of the heartbeat
  • And dilation of the pupils immediately after fainting

The patient usually regains consciousness in less than a minute.

But if a person gets up immediately fifteen to thirty minutes after fainting, this may happen again.


Why does a person get syncope?

Syncope occurs when the function of the part of the nervous system that regulates heart rate and blood pressure is disrupted in response to a stimulus such as anxiety or seeing blood.

At this stage, the heart rate decreases sharply and the blood vessels dilate. Eventually, as a result of these changes, the heart rate decreases and blood pressure drops. Due to dilation of blood vessels in the legs, blood flows to the legs and less blood reaches the brain.

Therefore, the person suffers from loss of consciousness and fainting for a short time. It is said that the most common stimuli for syncope are as follows:

  • Exposure to heat
  • Seeing blood
  • Blood sampling and blood tests
  • Fear of physical injury
  • Standing for a long time


  • applying pressure, for example when defecating


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When to see a doctor

If you are suffering from syncope due to stress and anxiety Be sure to consult a doctor, because it is necessary to rule out other serious diseases such as heart or brain problems. If you are a person who has not had such a case before and it has happened to you recently, we emphasize that you must consult a doctor.



You should give your doctor a research history when you see your doctor, for example:

  • what were you doing just before fainting?
  • What symptoms have you experienced before fainting?
  • Have you had a history of fainting?
  • Are you taking a new medicine?
  • Do you have a history of trauma or concussion?
  • Is there a family history of sudden death from heart problems in your family?

After obtaining a detailed history, a physical examination is performed.

Cardiac hearing is performed by a physician, and blood pressure, and heart rate are measured.

The following tests and procedures may be performed to rule out other possible causes for this team:

  • Blood tests to check for anemia
  • Stress test
  • Or exercise test electrocardiogram and echocardiography

In some cases, testing is recommended.



If you are a person who faints in stressful and anxious situations and if you do not have a serious cardiovascular problem after the tests, your doctor may recommend that you take medications that are commonly used to treat low blood pressure.

also, selective serotonin reuptake inhibitors are also helpful in controlling your condition.

If you do not have underlying cardiovascular disease, you will not need further treatment, such as surgeries with electrical heart regulators.


How can syncope be prevented in situations of anxiety and stress?

In fact, we should say that you cannot always prevent the occurrence of syncope, but it is better to say that whenever you feel weak and faint, sit down and lift your legs. As a result, the earth's gravity directs blood flow from the legs to the heart and brain

Thus, the drop in blood pressure prevents the oxygen supply to the brain from decreasing.

 If you can not lie down, it is better to sit down and put your head down between your knees until you feel better, and by doing so, due to the force of gravity, more blood will flow to the brain tissue. And your consciousness will not decrease.

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