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1. www.mayoclinic.org › symptoms-causes › syc-20375497Narcolepsy - Symptoms and causes - Mayo Clinic

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   Jan 14, 2023 · In narcolepsy, you may suddenly enter REM sleep without going through NREM sleep. This can happen both at night and during the day. Cataplexy, sleep paralysis and hallucinations are similar to changes that occur in REM sleep. But in narcolepsy they happen while you're awake or drowsy.

2. www.mayoclinic.org › symptoms-causes › syc-20354018Sleep disorders - Symptoms and causes - Mayo Clinic

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   Symptoms of common sleep disorders include: Being very sleepy during the daytime. You may fall asleep at times that aren't typical, such as while driving or while working at your desk. Trouble falling asleep, waking up during the night and not being able to go back to sleep. Or you may wake up too early.

3. www.mayoclinic.org › symptoms-causes › syc-20355167Insomnia - Symptoms and causes - Mayo Clinic

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   Jan 16, 2024 · Insomnia may be the main problem or it may be related to other conditions. Long-term insomnia is usually due to stress, life events or habits that disrupt sleep. While treating the cause of your sleep problem may stop your insomnia, sometimes it can last for years. Common causes of long-term insomnia include: Stress.

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5. newsnetwork.mayoclinic.org › discussion › mayoMayo Clinic Q and A: Revealing the cause of unexplained fainting

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   Apr 2, 2019 · A condition known as vasovagal syncope, sometimes called “neurocardiogenic syncope,” occurs when you faint as a result of your body overreacting to certain triggers, such as the sight of blood or extreme emotional distress.

6. my.clevelandclinic.org › health › diseasesSyncope: Symptoms, Causes & Treatments - Cleveland Clinic

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   Nov 3, 2022 · What are the symptoms of syncope? The most common syncope symptoms include: Blacking out. Feeling lightheaded. Falling for no reason. Feeling dizzy. Feeling drowsy or groggy. Fainting, especially after eating or exercising. Feeling unsteady or weak when standing. Changes in vision, such as seeing spots or having tunnel vision. Headaches. What ...

7. patient.info › signs-symptoms › dizzinessFainting: Causes, Symptoms and When to see a Doctor - Patient

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   Jul 31, 2024 · What happens when you faint? When you faint, you become unconscious for a few seconds. It is also called passing out or blacking out. The medical term for this is syncope. You may feel sick and sweaty first or pass out with no warning signs at all. When you pass out, you fall to the ground.

8. People also ask

   What causes a person to faint?

   • One of the most common reasons people faint is in reaction to an emotional trigger. For example, the sight of blood, or extreme excitement, anxiety or fear, may cause some people to faint. This condition is called vasovagal syncope.

   Mayo Clinic Q and A: When does fainting require medical attention?

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   Do you have a bad night's sleep?

   • Activities during sleep that are not usual, such as sleepwalking, sleep-eating or bed-wetting. Anyone can have an occasional poor night's sleep. But talk with your doctor or other healthcare professional if you regularly have trouble getting enough sleep, if you don't feel rested when you wake up or if you feel overly sleepy during the day.

   Sleep disorders - Symptoms and causes - Mayo Clinic

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   Should you see a doctor if you faint after a syncope?

   • For most people, it’s a temporary condition that doesn’t point to any serious health issues. Seeing a provider after you faint can give you peace of mind knowing that you don’t have a serious condition. Be sure to get treatment for your heart condition if that caused your syncope.

   Syncope: Symptoms, Causes & Treatments - Cleveland Clinic

   my.clevelandclinic.org/health/diseases/17536-syncope

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   Why does my heart faint?

   • In that case, it could be a side effect of a medication or due to an underlying medical condition, such as a nervous system disorder. Fainting becomes a more serious concern when it happens to people who have a prior history of a heart attack, people who have had heart surgery, or those who have heart disease or an irregular heart rhythm.

   Mayo Clinic Q and A: When does fainting require medical attention?

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   Is fainting a cause of concern?

   • In many cases, fainting is not a reason for concern. But, in some people — particularly in those with a history of heart problems or those who faint while exercising — fainting may be caused by a more serious underlying medical condition. In those cases, a health care provider should assess it as soon as possible.

   Mayo Clinic Q and A: When does fainting require medical attention?

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   What causes a person to faint if he sees blood?

   • For example, the sight of blood, or extreme excitement, anxiety or fear, may cause some people to faint. This condition is called vasovagal syncope. Vasovagal syncope happens when the part of your nervous system that controls your heart rate and blood pressure overreacts to an emotional trigger. Your heart rate slows, and your blood vessels widen.

   Mayo Clinic Q and A: When does fainting require medical attention?

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9. my.clevelandclinic.org › health › diseasesNarcolepsy: What It Is, Causes, Symptoms & Treatment

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   Narcolepsy is a condition where your brain can’t control your ability to sleep or stay awake. People with this condition often fall asleep during the day, along with other symptoms. While this condition is serious and disruptive, it usually responds well to treatment.