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Doctor insights on: Fainting From Laughing

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What happens when you faint while laughing?

What happens when you faint while laughing?

Laughter-induced or: Gelastic syncope is extremely rare. It is thought to be a sub-type of the situational syncopes; a valsalva-type effect: increased pressure in the chest reduces venous blood return resulting in decreased heart output and a transient reduction in blood flow to the brain, therefore fainting. Precautions are important to prevent injury if fainting occurs. Best regards. ...Read more

Dr. Rajiva Goyal
1,190 doctors shared insights

Syncope (Definition)

Loss of consciousness and postural tone caused by diminished cerebral blood flow. Syncope may indicate a particular medical condition, however often it may occur in an otherwise healthy individual. It is a common problem, accounting for 3% ...Read more


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Okay every time my mom laugh really hard it's feels like she is gonna faint and afterwards she gets really bad headache what can this be ?

Okay every time my mom laugh really hard it's feels like she is gonna faint and afterwards she gets really bad headache what can this be ?

Primary Cough Headac: Primary cough headache begins suddenly, lasts several minutes, and is precipitated by coughing, sneezing, or laughing. Be sure to rule out chiari malformation, carotid stenosis, cerebral aneurysm, and vertebrobasilar disease. Treatment is Indomethacin 25-50mg 2-3 times per day.Some patients (1/3rd) obtain relief of pain with lumbar puncture. ...Read more

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I was in bed and felt pain on my low abdome. Every time i laugh my tummy hurts. It got worse and i felt the need to faint and vomit. ?

I was in bed and felt pain on my  low abdome. Every time i laugh my tummy hurts. It got  worse and i felt the need to faint and vomit. ?

Need to see doctor : The cause of pain could be many things, such as appendicitis or other things. You need to see a doctor asap to get a full check up. ...Read more

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"fake" faints, shaking body parts out of sudden, expressionless, crying or laughing for no reason, random screams, can it be touretters? 14 y/o sister

"fake" faints, shaking body parts out of sudden, expressionless, crying or laughing for no reason, random screams, can it be touretters? 14 y/o sister

Attention seeking: Sounds like someone acting in a bizarre manor either to avoid some issue or get attention. Tourette syndrome often begins in the 4-6 yo & evolves over time. The teen who develops this late is unlikely affected. ...Read more

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My mother has trouble breathing when she's sleeping. She sometimes faints when laughs and randomly gets sleepy.

My mother has trouble breathing when she's sleeping. She sometimes faints when laughs and randomly gets sleepy.

Mom needs to see doc: There is a neurological disorder called narcolepsy in which people fall asleep inappropriately, and experience sudden loss of mucle tone with emotional arousal such as hearty laughter. That may cause a falling to the ground, but not true fainting (loss of consciousness). Breathing trouble is not part of narcolepsy. Sleep apnea, more common in obese people, may cause excessive daytime somnolence. ...Read more

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My husband sometimes faints during urination, coughing excessively or laughing too hard. He was previously diagnosed with a sensitive vagus nerve. About 2 years ago, he started having absence seizures where he stares into space and makes strange movements

My husband sometimes faints during urination, coughing excessively or laughing too hard. He was previously diagnosed with a sensitive vagus nerve. About 2 years ago, he started having absence seizures where he stares into space and makes strange movements

Neurologist: Fainting during urination, defecation with straining is not uncommon. You can actually live without a vagus nerve - in the past, surgeons would treat peptic ulcers this way- but please see your neurologist with a written list of your questions. ...Read more

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What causes faintness? Not exercising enough?

What causes faintness? Not exercising enough?

Complex answer: If this has happened more than once you need to see your doctor to determine what is going on and the cause. ...Read more

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2 second palpitations occuring every 10 mins or so for hours post workour after I started 1.5hr daily intense exercise again 2 days ago. No faintness.

2 second palpitations occuring every 10 mins or so for hours post workour after I started 1.5hr daily intense exercise again 2 days ago. No faintness.

Be seen: I would sure be seen and you may benefit from an echocardiogram and/ or a stress test. There are numerous reports of even high level athletes who have congenital and developmental cardiac conditions that manifest themselves during exercise. ...Read more

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How can I reduce faintness and fatigue while working out?

How can I reduce faintness and fatigue while working out?

Hydration: Most people forget that they need to drink fluids well in advance of doing vigorous exercise. Exercise causes the arteries and veins to expand which can lower blood pressure and make people feel tired and lightheaded. If you exercise in the morning, make sure you are well hydrated the night before. Avoid caffeine and high sugar energy drinks which can give quick bursts but result in dehydration. ...Read more

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Will low sugar be causing extreme dizziness and faintness?

Will low sugar be causing extreme dizziness and faintness?

Yes: Blood sugar below 70 commonly causes this. However rapid drop in blood sugar, even if still above 70 can do the same things. ...Read more

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I have continuous faintness, nausea and dizziness?

I have continuous faintness, nausea and dizziness?

Meniere's disease: Do you feel like motion-sickness? It depends if your symptoms are associated with sudden head movements, it is possible you have benign vertigo or a kind of vestibular disorder in your inner ear. If your symptoms last for more than several days, you are advised to talk to your doctor for further evaluation. Some anti-nausea medications are quite effective to control your symptoms. ...Read more

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What to do if there's constant faintness, nausea and dizziness?

Not normal: You need further evaluation, at the very least blood tests. Other imaging tests of blood flow to your brain might help. Low blood pressure or another heart condition could be a concern. Reactions to medicines or ingested foods might be the cause. ...Read more

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Once, after I ran I had faintness, difficulties in breathing, seeing (white image). Then the medic gave me glucose and calcium, what were they for?

Once, after I ran I had faintness, difficulties in breathing, seeing (white image). Then the medic gave me glucose and calcium, what were they for?

Suspected low sugar.: in the short term, low blood sugar is more dangerous than high level and so rapidly giving sugar for suspected symptom is a safer bet. I doubt that u had low calcium--as u likely would have experienced muscle spasm etc...but giving u some MAY reduce the risk of cardiac rhythm trouble. I would recommend checking with doc to see why u had trouble breathing...?asthma? Good luck ...Read more

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What might cause faintness, numbness, pain, and lightheaded drowsy and really abnormal feeling only while laying?

What might cause faintness, numbness, pain, and lightheaded drowsy and really abnormal feeling only while laying?

Many things: Could be anxiety or medical problems. I suggest you see your family physician. Make sure you ask your family members if they have ever had anything like this. Also does this only happen when you are falling off to sleep or coming out of sleep. If so make note of this. Does your heart skip beats? Start taking your BP first sitting then standing am, noon, 6pn, hs with pulse and axial temp. Keep a log. ...Read more

Dr. Scott Keith
146 doctors shared insights

Fainting (Definition)

Faintness is a clinical finding similar to a loss of consciousness and collapse. This can include ...Read more


Laughter (Definition)

Laughter = psycho-physiological reflex which is often in response to ...Read more