Anatomy, Physiology and Neuroscience

What are possible applications of magnetic brain stimulation besides treating depression/anxiety? Can it be used to change certain abilities of the brain or change personality traits? I think it's a fascinating technology that warrants more discussion here.

Another thread inspired by Artemis by Andy Weir (it's an OK book with some interesting near future sci-fi ideas). In book's Lunar base the atmosphere is 100% oxygen but at 0.2 atms so that the partial pressure of oxygen is about the same as at sea-level Earth. First question: what economic/engineering or other pragmatic factors might be in play to consider a low pressure environment. The ISS maintains a 1 atm pressure. However, my main interest is in speculating upon the long term health implications of living in such a system. For instance, i don't recall that the book mentions water vapour. With the low pressure this would surely lead to quite bad drying…

What's the difference in function between left amygdala and right amygdala/ What function do various sub-parts of the amygdala have?

I was hit in the back of my neck when I was a kid. If you look carefully at this photo you can see the bones are weird. I want to know the consequences. Can this injury affect your looks? How can this injury damage your health? How can I heal this? Thank you.

Good article about research on how the brain manages location and how the same mechanism seems to be used for conceptual spaces: https://www.quantamagazine.org/the-brain-maps-out-ideas-and-memories-like-spaces-20190114/ Interesting that in mathematics we also have a more abstract concept of "space" that seems to map on to this. Another argument for the "mathematics is invented, not discovered" side?

Me: Anonymous Guy: Me: Anonymous Guy: Me: Anonymous Guy: The guy just does not get it.

My daughter in law had her first child by Caesarian delivery. Should we ask her doctor to first try normal delivery or do a planned Caesarian for her second child? Will that be safe?

Hello there! I have dandruff in my hairs and the hairs have become dry too. I have tried anti-dandruff shampoos and anti-dandruff oils but there is no effect. And now winter has come, dandruff falls off my head profusely. Would you suggest me what to do?

I've read that dopamine neurons in the substantia nigra that have axons with less than 8 branches exhibit pacemaker modes of firing, but that ones with more than 8 branches do not. Why is that?

Are there therapies being developed to treat hearing loss? My nephew is 4 years and is deaf in one ear and he hears about 75 % in his other ear. He also has had several ear infections.

I've looked on sites the internet, but haven't been able to find out about these little darting specks of light that I see when I look up towards the sky. They don't appear to be in the sky, but are more like somehow produced in the actual eye, as I believe they move with the movement of my eyes. They're not "floaters", as they look very different to them (much brighter, for starters). I've never noticed them when I've been indoors, so I think that bright natural light is a factor. So, kind friends, can I ask a few questions of anyone willing to answer any of them, and maybe help me out? : -Firstly, and most crucially, does anyone know what they are? -Do you see t…

Mean Blood pressure in the ankles and feet while person stands reaches more than 100mm Hg. Mean arterial pressure in the aorta in also about 100mmHg. According to darcey's law, there is a blood flow providing a difference in pressure in the vessel. How blood travels from heart to the feet?

So we hear that if one consumes too much refined insulin-spiking carbs, it is very likely that a large portion of it will get stored as fat. Simple question. If I eat a large amount of a fatty low glycémic index food, like drinking some full fat cream (30% fat), physiologically, what happens after my body has used what it needs at that time? Does the rest get stored as fat? (I'm it does) but how?

Hello, This topic is becoming a hobby fascination of mine and I've been reading a fair amount of literature on it, which naturally gives rise to some questions. I have recently realised through a simple BG meter I inherited from my T2 diabetes mum, that my BG levels are slightly higher than what is considered to be normal. It seems to be exclusive to when I am fasting. I say this because on numerous occasions I have eaten the barely-imaginable filth that would cause BG's to rocket in just about anyone and tested my BG's within the hour only to find that it is still below 8mmol/l, whereas while fasting, I can get readings ranging between 6-7mmol/l (once it was 7.9 …

If you can blur your vision at anytime does it mean that you'll never need glasses or go blind???

I take Xylometazoline (adrenaline-like)to open the bloodvessels in my nose. After maybe 6 months of use I started to be warmer when I went to sleep then when I woke up. This was causal related to if I did sport/excercise. My heartbeat is also 'a lot' higher when I go to sleep then when I wake up. Logic dictates this warmth is related to a 'problematic metabolism', increased blood circulation/high hearth rate. How can an adrelanine look a like like Xylometazoline cause this?

a image i drawed of my diferent hallucinations i got this morning whenn i stared on a dark wall. i never had them before. it lasted in about 15 minutes. i do not use drugs. what can it be? (see image)

Hello, talking about CO2 transport, we know that the T form of hemoglobin binds more CO2 as carbamate than does the R form, so when the concentration of CO2 is high, the T state is favored and hemoglobin releases its bound O2. This mechanism is pretty clear to me, but I can't understand a statement made by my textbook when explaining this concept: "Although the difference in CO2 binding between the T and R states of hemoglobin accounts for only 5% of the total blood CO2, it is responsible for around 50% the CO2 transported by the blood. This is because only 10% of the total blood CO2 is lost through the lungs in each circulatory cycle". Can someone explain this sent…

Could you advise me please, some powerful, non-toxic, cheap and readily available laxative? It should be powerful enough to prevent any consumed food to stay inside of body even for half an hour. I suspect it could be some kind of non-toxic soap. But which exactly?

what if the human memory is the observation of previous sensory inputs?

Is it improper to add temperature and 'verticality' (balance) senses to the normally listed hearing, tact, taste, vision, smell ? An eighth could be the common sense, the least common of senses... I can directionally detect nearby hot spots with cheeks, hot/cold ingested foods; body position in darkness/bed, by inner ear or guts.

Hi! I was wondering if anyone knows how humans can replace sleep, and what year we would be estimated to have the medical knowledge and tools to be able to do that? If you go long without sleep, the body decays and you die, usually combined with heart failure or stroke. I also wonder what energizes us? /FreeTheGenius

Hello, the following equation is the short formula to calculate plasma osmolality (I found it on my physiology book as well as on Wikipedia): Calculated osmolality = 2 [Na] + [Glucose] + [Urea] My question is: why is the concentration of Na+ (sodium ions) multiplied by 2? Thanks in advance!

Does exist some kind of liquid by drinking which a human can make its body dielectric? It suppose to work like an "anti-electrolyte". Desirably it suppose to make body invulnerable to hundreds of volts and from low to high frequencies. Desirably this liquid suppose to have zero effect on any body functions.