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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50
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2answers
1k 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 ...
17
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2answers
410 views

Does sleep irregularity affect my brain and health?

For more than two years I have been sleeping irregularity. Sometimes I go to the bed at 10am, some days it may 10pm.There no regularity to when I sleep. Also, sleep time may differ. Sometimes I ...
13
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1answer
205 views

How good, and for how long, can endorphins really make you feel?

It seems to be common knowledge that exercise makes your body produce endorphins that make you feel good, but that is a vague idea. What amount of exercise does one need to have to achieve optimal ...
12
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1answer
294 views

What are the consequences of chronic sleep deprivation for mental function?

Some people don't sleep enough due to work, school, or personal issues. Regardless of the cause, what are the long-term impacts of losing sleep when describing mental performance in particular? I am ...
10
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3answers
228 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 ...
9
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1answer
2k views

What is the name of the sense that keeps track of where your body parts are?

I know that we have a sense that allows the brain to keep track of the locations of each of our limbs, digits, etcetera, but I can never remember what it is called. I would guess that most people aren'...
8
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1answer
154 views

how does alcohol damage the brain?

I am constantly reading about how alcohol affects mostly the liver and secondly other organs and body functions as well as causing vitamin deficiencies, but I did not find much information about the ...
8
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2answers
161 views

If meditating lowers brain activity and low brain activity is good then how come when you see low brain activities in (brain) PET scans its bad?

A lot of people try to scare you from taking drugs by showing you pictures of brains with lower brain activities on PET scans. But if meditating does the same exact thing and creates PET scans that ...
7
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1answer
535 views

Can ElectroConvulsive Therapy help us to forget our memories?

I need to know whether a person can get rid of his/her past(need selective memory loss) say 5-6 months through ElectroConvulsive Therapy. Otherwise the question can be posed as "Can the ...
7
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1answer
6k views

Does carbon monoxide poisoning make you tired before it kills you?

Does carbon monoxide poisoning make you tired and sleepy before it knocks you out and kills you, or does it immediately kill you? Can you notice its effects and be aware of them? http://nypost.com/...
7
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1answer
401 views

Subconcussive brain trauma

I believe American football and boxing are proven to cause brain damage. I would consider it severe and life changing. But does punching a heavy bag cause subtler brain damage? Maybe wrestling, ...
6
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1answer
6k 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 ...
6
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1answer
153 views

Is there scientific evidence that low-carb diets enhance athletic and mental performance?

Contrary to the recent past, when high carb - low fat diets were recommended, it appears that now the opposite type diet is often being recommended. Many doctors who have written books on the subject ...
6
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0answers
50 views

Visualization of a game that you just played [closed]

Do you see video of a game you just played before sleeping? It happens to me almost every time I play a XBOX / mobile / even a simple game for more than an hour or two. After I play a game, when I ...
6
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1answer
188 views

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 ...
5
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2answers
198 views

How to keep the brain in an excited state?

When the brain is excited everything is all around better, learning is faster, training is better, socializing is easier and thinking is faster and more coherent. For some, such as myself, however, ...
5
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1answer
984 views

What can cause a visual disturbance followed by a headache?

Interesting story: onset of a blurred point in a field of vision which gradually enlarges such that it forms an arc in the right side of the field of vision and then after a while that blurred arc ...
5
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1answer
152 views

How to eliminate brain fog quickly?

After 6 hours on a computer, I feel mentally exhausted. What can one do to re-energize the brain? Besides sleeping to speed up recovery, how could one eliminate brain fog quickly? I eat healthful ...
4
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1answer
33 views

Does diffusion MRI (DWI & DTI) measure diffusion or osmosis?

I am trying to understand the physical property which is measured in diffusion weighted imaging (DWI) and diffusion tensor imaging (DTI). I read that these methods estimate the apparent diffusion ...
4
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1answer
72 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 ...
4
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1answer
68 views

Are there any examples that gave a person new mental abililities after a head injury?

Are there any examples that gave a person new mental abilities after a head injury or accident that he did not have earlier? Abilities like Mental Abilities
4
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1answer
216 views

What happens to the brain after a hemispherectomy?

When one half of the brain is removed, what happens regarding the space? Does it fill with CSF? Is something man-made put in there to stop the other hemisphere from moving? Is the other hemisphere ...
4
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1answer
1k views

Does taking melatonin cause a reduction in the amount of melatonin the brain produces?

I take melatonin fairly frequently, but I have noticed that it does not work as well as it once did. I am wondering if by taking melatonin, the brain reduces its natural production of melatonin.
4
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0answers
55 views

Is tinnitus caused by brain damage?

This question was asked in Psychology.SE with no answer so I thought I would try here. It is well known that loud noises can lead to hearing problems such as temporary hearing loss or tinnitus (...
4
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0answers
2k views

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 ...
4
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0answers
282 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 ...
4
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2answers
4k views

When was brain cancer first discovered?

Does anyone know: In which year was the first brain tumor discovered?
3
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1answer
107 views

Can the blood accumulated after stroke be cured?

Recently my uncle had a stroke. He is now in rest and taking medicine. He has his right leg paralyzed, although the condition is improving. The doctor said that "blood is accumulated in the brain". ...
3
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1answer
649 views

Can thinking too much lead to brain damage?

I would like to become a mathematician, but am scared by the fact that for instance, Leonhard Euler developed what seems to be called a "cerebral hemorrhage", and he was perhaps the most prolific ...
3
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1answer
327 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
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1answer
66 views

Any research on brain's processes involved in evil actions?

I'm reading Zimbardo's The lucifer effect: understanding how good people turn to evil in which he describes the famous Stanford prison experiment that investigated the psychological effects of ...
3
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1answer
46 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 ...
3
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1answer
105 views

How does a skull mend after a surgery?

After a craniotomy, a large piece of a man's skull may be removed. That bone piece has to be put back, right? How to fix it and the bone piece can join the skull normally as it used to be? There ...
3
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1answer
56 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://www.ncbi.nlm.nih.gov/...
3
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1answer
30 views

Relation between Cold & Mood

Every single time whenever symptoms of a cold start to develop, excluding the general irritation (headaches, runny nose, etc) - there are moments where my mood just gets extremely positive. Is there ...
3
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1answer
82 views

How to keep my brain active and alert in natural always

Could you please let me know if any foods available to keep our brain active and alert always. Sometimes I loss the common sense also to think on few things. For example pronouncing a word that I ...
3
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0answers
52 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 ...
3
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0answers
37 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
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0answers
52 views

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 ...
3
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0answers
58 views

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 ...
3
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0answers
186 views

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

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?
3
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0answers
25 views

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 ...
3
votes
1answer
67 views

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 ...
2
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1answer
82 views

What factors influence the memorization in a young adult?

I am a currently a 23 year-old pre-med student and I am worried because I tend to forget things easily. To give you some examples: in class, I miss out on a lot of the information and in my every day ...
2
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1answer
789 views

what does this abnormality (arachnoid cyst) mean in a brain MRI?

In a Brain MRI (axial T1, T2, sagittal T1, axial T1 and FLAIR images) is written: CSF signal intensity lesion with 40x24x38mm diameter is seen in the anterior portion of left middle cranial fossa in ...
2
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3answers
97 views

Ringing in ears

Can somebody tell me, what's 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 ...
2
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1answer
909 views

Is the Fight or Flight response considered voluntary or involuntary? [closed]

Is the Fight or Flight response considered voluntary or involuntary? can this response be trained? Meditation?
2
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1answer
31 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. ...
2
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2answers
123 views

Can individuals experience a 'pleasurable' form of psychosis?

From reading anecdotal stories of people with psychosis and schizophrenia online and meeting some people in real life suffering with them first hand, it seems that their experiences are always ...
2
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1answer
4k views

Withdrawal symptoms of pornography addiction

For a 10 years pornography addict what are the symptoms of withdrawal at the first 2 months ?