2024年12月2日 · Fainting (syncope) is a sudden loss of consciousness from a lack of blood flow to the brain. People who have passed out usually wake up quickly after collapsing, but in some cases, fainting is a sign of a serious or potentially life-threatening condition.

2024年7月10日 · Fainting, or syncope, is a temporary loss of consciousness caused by a lowered blood flow to the brain. Various conditions can trigger fainting, ranging from mild to serious.

2023年7月3日 · Fainting, or the temporary loss of consciousness, can occur if your brain isn’t getting enough oxygen. Fainting may be triggered by a number of factors, including dehydration, low blood...

2023年3月14日 · Fainting, or passing out, is a temporary loss of consciousness from a sudden decrease of blood flow to your brain. An episode usually lasts a few seconds or minutes. Most are harmless, but if you faint often or have other symptoms, you should seek medical attention. What is fainting? Fainting is a short-term loss of consciousness.

2023年8月8日 · Fainting can be alarming, and it should be. While often the cause of fainting is something minor, fainting also can be a sign of a serious underlying medical concern. The problem is that you can't evaluate yourself, and you should let a physician determine if fainting is worrisome or not.

Below are some of the common causes of fainting: 1. Dehydration. When there is a significant reduction of fluids in a person's body, he or she can become dehydrated. The symptoms of dehydration may vary from one person to another. However, fainting can occur when a person is severely dehydrated.

2024年1月12日 · Fainting is a brief loss of consciousness that can occur with or without a serious medical issue. It can cause a person to slump in a chair or fall to the ground. Most...

Syncope is also known as fainting. This is a temporary loss of consciousness with a quick recovery. Usually, syncope isn’t a cause for concern. Most people don’t need follow-up treatment. However, you need treatment for certain causes, such as heart issues. What is syncope?

2023年3月8日 · Fainting, also known as syncope, is a temporary loss of consciousness that most commonly occurs as a result of a sudden drop in blood pressure, resulting in a lack of oxygen to the brain. Common causes include emotional triggers, dehydration, standing up too quickly, and medication side effects.

If a person suddenly loses consciousness and then “comes to” after about a minute, he or she may simply have fainted. Fainting is caused by a sudden decrease in blood flow to the brain. Usually the cause of fainting is not serious.