Common symptoms of syncope (fainting) range from feeling dizzy to seeing spots or having headaches. The most common syncope symptoms include: Syncope, or passing out, happens …

Jul 10, 2024 · Fainting happens when you suddenly have less blood flow to your brain, causing a loss of consciousness. Fainting symptoms Symptoms of fainting include: Sweating Feeling …

Oct 21, 2024 · Syncope is a symptom that can have several causes, ranging from harmless to life-threatening conditions. Many non-life-threatening factors, such as strong emotions, heavy …

Usually the cause of fainting is not serious. For example, being dehydrated (not having enough fluid in the body), being too hot, being in a crowded room or feeling intense emotion can cause …

Jul 22, 2025 · Fainting is a temporary loss of consciousness. If you're about to faint, you'll feel dizzy, lightheaded, or nauseous. Your field of vision may "white out" or "black out." Your skin …

Dec 5, 2025 · Key Takeaways Fainting happens when your brain doesn’t get enough blood. Dehydration, shock, too much alcohol, and even anxiety can lead to fainting. If you think you’re …

Jun 20, 2023 · Fainting is a brief loss of consciousness due to a drop in blood flow to the brain. The episode most often lasts less than a couple of minutes and you usually recover from it …

Jul 3, 2023 · Get the facts on what causes fainting and when it’s considered a medical emergency.

Fainting, "blacking out," or syncope is the temporary loss of consciousness followed by the return to full wakefulness. This loss of consciousness may be accompanied by a loss of muscle tone …

Common symptoms of syncope include: Changes in vision such as seeing spots or having tunnel vision. People who experience the warning signs of fainting or dizziness, nausea and sweaty …