* What Is Fainting (Syncope)?

Doctors call fainting syncope, a temporary loss of consciousness.

It happens when the brain does not receive enough blood flow for a short time.

A person may suddenly feel dizzy, lightheaded, sweaty, or weak before passing out.

Common triggers include standing up too quickly, dehydration, overheating, or sudden emotional stress.

Although occasional fainting can be harmless, repeated episodes are not normal and need attention.

The risk increases with age, especially in people over 70.

* Does It Always Mean Low Blood Pressure?

Many people assume fainting is caused by low or high blood pressure.

While sudden drops in blood pressure (orthostatic hypotension) can cause fainting, it is not the only reason.

Skipping meals, low blood sugar, or not drinking enough water can also lead to dizziness and blackouts.

If fainting keeps happening without a clear reason, it should not be ignored.

* Can heart Problems Cause Sudden Blackout?

Yes, heart conditions can sometimes lead to sudden fainting.

If the heart does not pump enough blood, the brain receives less oxygen.

Heart-related fainting often occurs without warning signs.

Warning symptoms may include chest pain, shortness of breath, or a racing heartbeat.

Fainting during physical activity can also indicate a heart issue.

In such cases, it may be a medical emergency and requires immediate evaluation.

* Other Possible Causes

Neurological problems or stroke.

Severe anemia (low hemoglobin levels).

Hormonal imbalances.

Low blood sugar.

Certain medications.

Dehydration and prolonged standing.

* When Should You See a Doctor?

If you faint more than once.

If unconsciousness lasts more than a minute.

If there is no warning before fainting.

If you feel confused after regaining consciousness.

If you have a family history of heart disease.

Doctors may recommend blood tests, heart monitoring, or nervous system tests.

Early diagnosis helps prevent serious complications and ensures proper treatment.

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