Questions tagged [brain]

Questions pertaining to the brain: an organ of soft nervous tissue contained in the skull of vertebrates, functioning as the coordinating center of sensation and intellectual and nervous activity.

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Could the cerebral hypoxia caused by voluntarily hyperventilating for an hour ("breathwork") cause brain damage?

TL;DR hyperventilating for 60 minutes for psychedelic/meditative/therapeutic effect: is this dangerous? Hyperventilation can lead to cerebral hypoxia, as hypocapnia (reduced CO2 in blood) causes ...
tobek's user avatar
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6 votes
1 answer
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Misophonia and autism

I would like to know, is there an area of overlap between misophonia and autism? Because I have heard autistic people are sensitive to specific sounds in absence of love and cover their ears. How ...
Jimmy Joslington's user avatar
4 votes
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330 views

Mechanisms that causes prominent veins during physical exercise

I have just read this article about why veins become prominent while exercising: Why do veins pop out when exercising, and is that good or bad? I have some questions about this: The article ...
Sarah's user avatar
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3 votes
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Why has the Notch1 intracellular domain-transfected MSC expected as the greater regenerative medicine for ischemic stroke?

In Japan, SanBio's investigational regenerative medicine product, SB623, become a hot topic. The 'active ingredient' of SB623 seems to be gene-modified mesenchymal stem/stromal cells. That cells ...
Blue Various's user avatar
3 votes
0 answers
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Can repeated light hits to the head cause brain damage?

Can a single or repeated light hit to the head that is mild enough to not shake the head but is followed by a mild headache or dizziness cause brain damage? Does the brain need to hit the skull to be ...
Moe Limson's user avatar
3 votes
0 answers
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Neurotransmitter distribution in the central nervous system (CNS)

I have been glancing through the article Wikipedia (Neurotransmitter) where in particular at the bottom "diseases and disorders" there is some minor information about an example, but I'm actually ...
Diger's user avatar
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3 votes
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How the brain would recover by itself?

After reading this story about Terry Wallis and how his brain worked to self recovery, what are the medical/scientific conclusions and theories that we can collect from his medical status and what we ...
alim1990's user avatar
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3 votes
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Is increased blood flow always correlated with increased cerebral activity?

I've heard that cerebral fMRI (Functional magnetic resonance imaging) maps blood flow through the brain, and it is most of the time correlated with cerebral activity. What are the factors that can ...
Magix's user avatar
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3 votes
1 answer
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Effects of eating healthy food for a limited amount of time

if we for example went on a healthy life style for a limited amount of time like 3 months. Then, we reverted back to our less healthier life style that we initially had. Will the reverted for (less ...
user5009's user avatar
2 votes
0 answers
58 views

Covid may cause brain to degenerate three times faster than normal?

I found this study on GB News: Covid may cause brain to degenerate three times faster than normal, Oxford study suggests After reading the article I still have a few questions. I found the study ...
guest's user avatar
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2 votes
0 answers
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Can hemophilia be advantageous when the blood circulation is stopped?

First of all, I'm a computer engineer and I have nothing to do with Medical Sciences so this question might sound ridiculous. I found a book( Hall, J. E. 1. (2016). Guyton and Hall textbook of medical ...
patoglu's user avatar
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Why are antidepressants considered the most successful therapy of fibromyalgia?

Fibromyalgia is classed as a disorder of pain processing due to abnormalities in how pain signals are processed in the central nervous system. 1 Antidepressants are now the most widely studied and, ...
Bob Ortiz's user avatar
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Why does the brain shrink and increase energy usage after dehydration?

Along with mood and energy deficits a dehydrated brain has to use a lot more energy to accomplish the same tasks, shows a study from King's College London. Quote from Dehydration affects brain ...
Bob Ortiz's user avatar
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Are transorbital lobotomies still considered ethical these days?

Psychosurgery has a controversial history and despite modifications still raises serious questions about benefit, risks, and the adequacy with which consent is obtained. Its continued use is defended ...
Bob Ortiz's user avatar
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How common is CTE in normal adults?

How common is chronic traumatic encephalopathy (CTE) in normal adults who don't have obvious risk factors such as high-impact sports? Have there been any studies done on the normal population as ...
user3067860's user avatar
2 votes
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77 views

Need help with Dementia Hackathon Idea (Professionals experienced with dealing with Dementia patients appreicated!)

Me and my team are planning to go to a Dementia based Hackathon early March and since this is our first actual hackathon we were wondering if you could provide some advice regarding our idea. Here's ...
DreamVision2017's user avatar
2 votes
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89 views

Altitude Sickness & Brain Damage

I stumbled on an article about altitude sickness and causing permanent brain damage; is there validity to this for less extreme mountaineers? It is common for Colorado front rangers to ascend up a 14,...
Kellen Stuart's user avatar
2 votes
0 answers
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Cerebellar tonsil herniation measurement level?

In my MRI scan result the cerebellar tonsil detected had a measurement of 0.50 mm through the foremen magnum. Is this condition considered normal for a tall person or is it considered the beginning of ...
rsu's user avatar
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1 vote
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Statistics for neurological health vs. death

Friends and I have been discussing mental health and lifespan due to examples of family members with dementia who could live for another 15-20 years vs. family members whose minds were sharp as a tack ...
JBH's user avatar
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1 vote
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132 views

T1 weighting vs T2 weighting for monitoring a brainstem lession

https://www.researchgate.net/figure/1-Typical-values-of-relaxation-parameters-T1-and-T2-ms-for-Hydrogen-components-of_tbl1_291346848 I see from the table (various tables actually from diverse papers ...
George Ntoulos's user avatar
1 vote
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What is the difference between the vasomotor center and cardiovascular center in the brain?

The vasomotor center is introduced as the following in our coursework: The vasomotor center is located bilaterally in the reticular substance of the medulla and lower third of pons. It contains the ...
Filthyscrub's user avatar
1 vote
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55 views

How does the brain react to intermittent fasting during the whole cycle?

In the 16/8 intermittent fasting, you eat for 8 hrs then fast for 16hrs. I am curious about how the brain reacts to these changes as the cycle progresses through the day. When will cognitive ...
Ahmed Maher's user avatar
1 vote
0 answers
35 views

What is the meaning of "subcortical retraction" in a description of MRI of a Kearns-Sayre syndrome patient?

I came across the term subcortical retraction and cannot understand its meaning. Does it mean "the withering of the subcortical areas" (shrinking of subcortical white matter)? From Follow-up ...
CowperKettle's user avatar
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1 vote
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What is the risk of meningitis after nasal hair plucking?

I heard board-certified dermatologist Dr. Sandra Lee (aka Dr. Pimple Popper) refer to a Nasolabial triangle as the "triangle of danger" on one of her tv show episodes. Re-reading the ...
Chris Rogers's user avatar
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1 vote
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Is the MSC-based regenerative medicine promising for Ischemic stroke stroke patients? ; two points difference in the 47-point test

Many papers says, regenerative medicine using MSCs are promising for Ischemic stroke stroke patients. But in my layman's sense, various data don't seem promising. So, I want to hear the opinions of ...
Blue Various's user avatar
1 vote
0 answers
20 views

Why do some neurons live longer than others?

It seems that the scientific community agrees that the development of new neurons stops between adolescence and early adulthood. ("Does the Adult Brain Really Grow New Neurons?" https://www....
Daniel Rodríguez's user avatar
1 vote
0 answers
10 views

What are the definitions of Time to Peak, Cerebral Blood Flow and Mean Transit Time?

I am trying to compute Time to Peak, Cerebral Blood Flow (CBF) and Mean Transit Time (MTT) maps in brain CT imaging. I tried to find the definitions or some articles but I am not from the medical ...
Gopi's user avatar
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1 vote
0 answers
117 views

Does a higher IQ influence the 'high' of weed?

I'm not sure if this is the best place for the question, but it seemed like the appropriate board to ask on.. So, I'm not asking if Higher IQ= Smoking more weed or anything like that. I was just ...
Attractivetoaster's user avatar
1 vote
0 answers
25 views

Longitudinal studies on: how attention to emotional stimuli develops from infancy to childhood?

According to LeDoux’s model (1996) we have specialized pathways for processing emotional cues. Pourtois, Schettino and Vuilleumier (2013) offer a neural model of how emotional signals capture ...
Fil's user avatar
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1 vote
0 answers
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Noogie = concussive force?

Can rubbing ones head vigorously with the knuckles result in brain trauma (essentially a hard scalp massage with the knuckles). Forceful enough that it is putting pressure on the scalp and causing ...
goat's user avatar
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Why consciousness is lost immediately when heart stops beating?

When heart stops beating - consciousness is lost in seconds. It is explained that it is due to the drop of blood pressure in brain veins. However, by my understanding - that should only make brain ...
Draif Kroneg's user avatar
1 vote
0 answers
45 views

What practically "kills" the human brain without debilitating the person?

For example, people say that drugs kill the brain but someone who becomes stupid and forgetful from years of smoking marijuana isn't literally brain dead. What specific drugs and other activities or ...
smeg's user avatar
  • 11
1 vote
0 answers
238 views

How are skills stored in the human brain?

How are skills stored in the human brain? I understand the difference between STM and LTM (short/long term memory). However, remembering a fact is different than learning a skill. Example: Let's take ...
maplemale's user avatar
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1 vote
0 answers
269 views

Can unruptured brain aneurysm symptoms come and go?

Lets say a person has many symptoms of a unruptured brain aneurysm, but they're rather subtle, and seem to change from one symptom to another. They come and go. Is that possible? Or, if they were ...
Amma's user avatar
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0 votes
0 answers
57 views

What is meant by "declaration of brain stem death is made mandatory for every hospital"?

I am an activist working for organ donation popularization in India, a country with a dismally low rate (0.5 per million). Apart from working for deceased donation, I had also offered my own organs as ...
Ritesh Singh's user avatar
0 votes
0 answers
33 views

Where to Download Brain Anatomy 3D Model?

I am doing a virtual reality simulation for endoscopic brain surgery. I need a medically accurate 3D model of a human head. It has to include all the veins, skull, muscles, nerves and brain anatomy. ...
FaridaElOraby's user avatar
0 votes
0 answers
22 views

What is Chronic Cerebral Small Vessel Ischemic disease?

I am curious. What is chronic cerebral small vessel ischemic disease? Does anyone have any suggestions for someone with that disease? What is the life expectancy?
CallmePatti's user avatar
0 votes
0 answers
21 views

Understanding the use of medication from EEG

Recently I came across a study in which a group of people was trying to predict the medication ( especially anticonvulsants like Dilantin and Keppra ) a patient was using from his EEG. Does this have ...
michioKsku's user avatar
0 votes
0 answers
113 views

Tilt table test and beta blockers

Is tilt table test indicative with beta blockers for dysautonomia diagnosis? Or is it require drug withdrawal?
red0ct's user avatar
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0 votes
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31 views

Altered signal intensity lesion in frontal horn of right lateral ventricle in subependymal region without post contrast enhancement

There is evidence of approximately 9*8 mm sized altered signal intensity lesion is noted in frontal horn of right lateral ventricle in subependymal region. Lesion appears hypointense on T1W, ...
Aditya Shah's user avatar
0 votes
1 answer
81 views

What supplements/diet/activities can I do to improve mental function?

I am currently going through a web development bootcamp. I want to stress the word bootcamp here, a bootcamp on my brain. I know sleep deprivation is taking its toll on my mental capacities so far but ...
bboy's user avatar
  • 21