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A 24-year-old member asked:

what is heat syncope?

3 doctor answers6 doctors weighed in
Dr. Robert Kwok
Pediatrics 33 years experience
Overheats and faints: A person who gets overheated will automatically dilate (widen) the blood vessels in his skin so that more blood will flow to the skin. His body does this in hopes of cooling him down, just like the elephant who sends more blood to his ears to cool his body down. The person, however, feels lightheaded and may faint because there is not enough blood flowing his brain (too much blood is in the skin).
Dr. Gary Ritholz
Anesthesiology 30 years experience
Feinting: Heat feinting or syncope occurs when the body overheats and tries to lower its temp. It does this by sweating and dilating small vessels near the surface to radiate heat. So the combination of loss of water and salt from sweating and dilation of blood vessels can cause a drop of blood pressure which can cause you to feint.
Dr. Shabbir Hossain
Internal Medicine 16 years experience
Passing out: Syncope is a generic term for passing out. Alot of things can cause it, some serious, some not so serious. So heat syncope would be, passing out due to the heat. Stay well hydrated!

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Similar questions

A 53-year-old member asked:

Can bradycardia cause syncope?

3 doctor answers4 doctors weighed in
Dr. Jay Park
Dr. Jay Parkanswered
Pediatrics 50 years experience
Yes: Syncope is loss of consciousness due to transitory decline in blood flow to brain. This can be caused by irregular heart rate or rhythm or by alteration of blood volume or distribution.
CA
A 25-year-old member asked:

Should syncope patients have a wheelchair?

2 doctor answers4 doctors weighed in
Dr. Joseph Roosth
Internal Medicine 35 years experience
Sometimes: When someone has syncope, they should always have a medical evaluation as many causes can be treated successfully. Unfortunately some, especially frail elderly patients, have limited treatment options in which case a wheelchair can make the difference in being able to do all sorts of common daily activities as well as get out of the home.
A 44-year-old member asked:

What does the term heat syncope mean?

2 doctor answers5 doctors weighed in
Dr. Robert Kwok
Pediatrics 33 years experience
Overheats and faints: A person who gets overheated will automatically dilate (widen) the blood vessels in his skin so that more blood will flow to the skin. His body does this in hopes of cooling him down, just like the elephant who sends more blood to his ears to cool his body down. The person, however, feels lightheaded and may faint because there is not enough blood flowing his brain (too much blood is in the skin).
A 47-year-old member asked:

What is vasovagal syncope?

2 doctor answers3 doctors weighed in
Dr. Pedro Hernandez
Geriatrics 40 years experience
Common fainting: When the nerve vagus causes a fainting spell. Usually this happens in responds to a recent stimulus like when injecting needles, watching blood, during medical procedures, while fasting, while standing for long periods, while in fear or panic. When there is no other obvious cause for fainting it is said that is called "vasovagal syncope". There are other causes of syncope or loss of consciousness.
Fort Myers, FL
A 67-year-old female asked:

I have been having weakness in upper part of chest, not all the time. I feel like I am going to pass out, it soon passes. I feel disoriented?

1 doctor answer2 doctors weighed in
Dr. Gurmukh Singh
Pathology 49 years experience
Agree with Dr. M: An addition item to address is hydration. Drink enough water so that your urine is mostly colorless.

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Last updated Oct 3, 2016

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