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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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3 votes
1 answer
375 views

Is there a prostate orgasm?

Is there any scientific evidence that orgasm can be achieved by stimulating the prostate? The 2023 article "Atlas of the Experience of Receptive Anal Sex in People with a Prostate" states: ...
1 vote
0 answers
41 views

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 ...
0 votes
1 answer
75 views

Why cant one feel inner body parts?

If we pour hot or cold water on skin then we feel it immediately. We respond to a small injection also. But our body parts are doing a lot of work, for example, our lungs do inhale and exhale, our ...
3 votes
1 answer
130 views

How do humans meet the brain’s glucose demand of 420kcal (105g sugar) per day on a healthy diet?

How do humans meet the brain’s glucose demand of 420kcal (105g sugar) per day on a healthy diet? Wouldn't the protein demand in case of gluconeogenesis be tremendous? https://web.archive.org/web/...
1 vote
0 answers
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 ...
1 vote
1 answer
124 views

Brain injury involving no deceleration of the head

Many articles explain that the mechanism of a brain injury is via the relative motion of the brain and the skull due to acceleration, which may cause impacts to the brain with the inside of the skull. ...
3 votes
1 answer
96 views

Doesn't Intraventricular Catheter placement damage the brain parenchyma? Is this damage significant? How is it avoided/minimised?

On certain occasions, Intracranial Pressure (ICP) must be monitored and, according to the Principles of Neurological Surgery, one of the ways this is done is by placing an Intraventricular Catheter in ...
1 vote
0 answers
43 views

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 ...
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 ...
0 votes
1 answer
89 views

How well is the brain protected from physical hits ? Can small hits or blows cause brain damage?

Small punches like Diaz does to himself here : https://youtu.be/F5OYXELOwjQ#t=195s I am just curious about how hard must a punch be to cause even light brain damage or IQ loss.
1 vote
1 answer
83 views

Topical local anesthesia affecting the brain

If a medical provider uses local anesthesia on say the nose or ears (a location near the brain), could it extend to the brain and put part of the brain to "sleep"? Would the patient be able ...
-1 votes
1 answer
63 views

Why do neurostimulators for DBS need to be implanted?

Neurostimulators for deep brain stimulation (DBS) are called implantable pulse generators (IPG), precisely because all of them end up being implanted inside the patient's body. Now I get that the ...
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 ...
1 vote
1 answer
148 views

Ringing in ears [closed]

What is that ringing sound in the ears which prevails even when somebody is in quiet surroundings? Is that sound real or just created by our brain due to some sort of malfunctioning? Some scientific ...
1 vote
1 answer
46 views

Are the surgical site infections "in the brain" caused by same bacteria found in "other parts of the body"?

Are the surgical site infections "in the brain" caused by same bacteria found in "other parts of the body"? There's a blood-brain barrier so, most of the bacteria that infect ...
4 votes
1 answer
285 views

Can constant exposure to static electricity affect the nervous system in any way? [closed]

As titled, can holding a constant static charge affect the CNS? If so, is it detrimental? What are the short/long term effects, if any?
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. ...
1 vote
0 answers
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 ...
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?
2 votes
0 answers
142 views

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 ...
4 votes
2 answers
126 views

What are ASDH and AS in the context of "cause of death"?

I'm not sure this is technically the correct place to ask this question, but I know I need medical expertise so hear I am. I have been researching my family genealogy recently and, of special interest ...
1 vote
1 answer
2k views

What things can trigger scintillating scotomas? Are they sometimes classified benign and not a reflection of a condition requiring further treatment?

This is a different question than Are scintillating scotomas really caused by cortical spreading depression? If so, how is this known to be true? asked almost one year ago in Psychology and Neurology ...
10 votes
3 answers
284 views

Treatment of addiction

Substance addiction e.g. heroin is treated by gradually decreasing doses of a less potent substance other than heroin (if I am correct). Is this rule can be applied to any other addiction e.g ...
-1 votes
0 answers
57 views

Can any substance directly damage our certain functions of brain? [closed]

As we know, that if our brain (thinking, memory, logics, etc.) functioning is damaged, there would be other symptoms associated with it. Let me clarify, EXAMPLE 1: suppose a person had COPD due to ...
0 votes
1 answer
15k views

Withdrawal symptoms of pornography addiction

For a 10 years pornography addict what are the symptoms of withdrawal at the first 2 months ?
1 vote
0 answers
53 views

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 ...
1 vote
0 answers
28 views

Why do water molecules diffuse along axons direction? [closed]

I am studying tractography technique which aims to reconstruct bundles of axons in brain by following the diffusion direction of water. It exploits the difference between grey matter and white matter: ...
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 ...
0 votes
1 answer
58 views

Would neurons regenerate even in adults? [closed]

I want to know whether or not the nerves regenerate in human adults. My Question Please give me evidences for this issue. What experiments and logic do they use to prove that the nerves are/are not ...
1 vote
0 answers
164 views

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 ...
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 ...
5 votes
1 answer
84 views

Avoiding acute mountain sickness, high altitude pulmonary & cerebral edema

I have to fly to a town which is at high altitude. What precautions/drugs can I take to avoid acute mountain sickness or more life threatening accumulation of fluid in brain or lungs (high altitude ...
2 votes
1 answer
78 views

How do you tell a brain-dead patient from a living one?

One theme that's been explored somewhat in popular culture is brain death, and the interesting dynamics of what separates dead from alive. In chemistry, death is defined as the loss of the ability to ...
2 votes
1 answer
98 views

Reducing trauma from surgery prohibiting sedation

I've noticed something a bit worrying about the way certain surgeries are performed, and I was wondering if there is a better way: During surgery, medications are administered to induce ...
0 votes
1 answer
21 views

Why does Delayed Post-hypoxic Leukoencephalopathy (DPHL) have a biphasic clinical course?

Delayed Post-hypoxic Leukoencephalopathy (DPHL or Grinker myelinopathy) is a rare condition where patients recovering from an anoxic/hypoxic brain injury develops new neurological symptoms 2-4 weeks ...
3 votes
0 answers
66 views

Can someone die from not sleeping? [closed]

I know this sounds like a weird question, but is it possible for someone not sleeping to die? What are all the negative consequences of not sleeping for long periods of time? Do you have any tips for ...
52 votes
2 answers
2k views

Is there any health risk in cellular phones?

Cellular phones are taking ever increasing part in our lives, and I keep hearing people saying they are harmful to our health. Are there any scientific researches so far proving or disproving those ...
-1 votes
1 answer
57 views

Are population-related conclusions obtained from autopsy applicable to the general population?

In this paper, it says that "Although the prevalence of pineal cysts in autopsy series has been reported as being between 25% and 40%, MR studies have documented their frequency to range between ...
0 votes
0 answers
115 views

Tilt table test and beta blockers

Is tilt table test indicative with beta blockers for dysautonomia diagnosis? Or is it require drug withdrawal?
3 votes
0 answers
73 views

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 ...
6 votes
1 answer
10k views

Is forgetting certain spellings a sign of Alzheimer's?

1) Is forgetting certain spellings in English (easy ones, and remembering the tougher ones) and other things like daily chores etc., a sign for Alzheimer's? 2) Does Alzheimer's affect people under ...
2 votes
0 answers
53 views

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, ...
2 votes
0 answers
48 views

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 ...
2 votes
0 answers
102 views

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 ...
3 votes
0 answers
110 views

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 ...
3 votes
1 answer
348 views

Skin receptors on finger tip

How many receptors do we have on our fingertipps per square centimeters? I found 2500 but do not find the source. Is this correct?
3 votes
1 answer
63 views

What are normal structures that could be misinterpreted as lacunar strokes on T1 or T2 brain MRI?

Trying to detect lacunar strokes in brain MRI, in T1 they look like a small black hole, whereas in T2 bright-white; located within white matter region. My question is, are there any structures that ...
2 votes
0 answers
65 views

Are there side effects of listening to binaural sounds? [closed]

I have started listening to binaural sounds (left side wave of 89.75hz, right side wave of 85.25hz) for meditation every day for 10 to 15 mins in morning. I feel calm, relaxed and focused after that. ...
2 votes
1 answer
47 views

How often does the organic material of the brain change?

I read the following in Simon Blackburn's Think (1999), page 121: The organic material of my body (except my brain) changes roughly every seven years. It seems strange that the brain is excluded. ...
1 vote
1 answer
58 views

Brain performance suppliments [closed]

My 27 years old brain lacks concentration and memory, mood to perform daily task is lazy. I used to have a test most of the vitamins are ok except D and B complex Below average a little bit. Which ...