Disease & Illness Health & Fitness

What Causes People to Faint Often?

What Causes People to Faint Often?

Windowofworld.comWhat Causes People to Faint Often? Fainting is a problem that is quite common on a daily basis. Fainting or syncope is a condition in which a person suddenly loses consciousness temporarily. This condition is usually caused due to hypoxia or lack of oxygen to the brain. Several things can cause this condition, including hypotension (low blood pressure) and carbon monoxide poisoning.

Although fainting can be an indication of certain medical conditions, in certain cases, fainting can occur in healthy people. Fainting can result from fear, intense pain, emotional stress, hunger, and consumption of alcohol or drugs. People with this type of fainting do not have heart disease or any underlying neurological disorders.

You need to know that fainting is actually a body mechanism to maintain the function of vital organs by temporarily stopping the non-vital organs, so that oxygen can be focused on the vital organs. When the brain begins to experience a lack of oxygen, the body will breathe faster (hyperventilate).

In addition, the heart will increase blood pump, which is indicated by an increase in heart rate. Both of these mechanisms aim to increase oxygen levels back to the brain. Increased work of the heart causes a decrease in blood pressure (hypotension) in several parts of the body. This condition of hyperventilation and hypotension causes temporary loss of consciousness and weakness.

Types of Fainting

Fainting can be caused by many things. The most common causes are neurocardiogenic or vasovagal. Fainting can also be caused by sudden changes in position (orthostatics) and heart disease. If you pass out frequently, here are some types of fainting based on the cause to identify your problem.

1. Neurocardiogenic or vasovagal fainting

This type of fainting is the most common type and often occurs in children and adolescents. Neurocardiogenic fainting occurs when something triggers short-term damage to the autonomic nervous system. The autonomic nervous system plays a role in affecting heart rate, digestion, respiratory rate, saliva, sweat, pupil diameter, urination, and sexual arousal.

When it is damaged, the body will experience a decrease in blood pressure and heart rate, and the pulse will slow down. This then causes a temporary disruption in the supply of blood and oxygen to the brain.

Usually fainting occurs while standing for long periods of time and is often preceded by a sensation of warmth, nausea, lightheadedness, and a visual “graying.” Seizures can occur when this type of fainting lasts a long time. A strong cough or sneeze, straining during a bowel movement, physical activity, such as lifting weights, are some of the things that can trigger neurocardiogenic fainting, a state of shock when receiving unpleasant news and seeing something unpleasant.

2. Orthostatic Hypotension

Getting up from a lying or sitting position quickly can cause a sudden drop in blood pressure, leading to fainting. This happens because when standing, the force of gravity causes blood to collect in the leg area.

Under normal circumstances, the body will respond to restore blood pressure by increasing the heart rate and narrowing the diameter of the blood vessels (vasoconstriction). In orthostatic hypotension, there is a disturbance in this blood pressure stabilization process. Things that can trigger the disturbance include:

  • Dehydration
  • Uncontrolled diabetes
  • Medicines, such as diuretics, beta blockers, and antihypertensives
  • Alcohol
  • Neurological conditions, such as Parkinson’s disease
  • Carotid sinus syndrome

3. Cardiogenic fainting

Disorders of the heart can cause reduced blood and oxygen supply to the brain, leading to fainting. Heart rhythm disturbances (arrhythmias), problems with heart valves, hypertension or high blood pressure can cause fainting. The condition of a heart attack is also one of the causes of loss of consciousness. In a heart attack, part of the heart muscle dies from a lack of blood and oxygen supply.

Fainting can be treated based on the underlying cause. Fainting is considered an emergency condition until the cause is known. If the fainting that occurs is due to a medical problem, you should consult a doctor for appropriate treatment.

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