Medical Science

Hi. The typical sphygmomanometer has always been elusive for me to comprehend how it works, even with 'good' hydraulics knowledge. The inflating bladder and the presence of pressures in an 'arm' counteract somehow and the result is a valid reading, tossing in the mix the sthetoscope... I think. IF a manometer with the proper scale was hydraulically 'connected' to an artery, as tapping a existing/in-use intravenous needle on the patient arm; would such blood pressure be able to be permanently read/displayed/monitored in real time instead of the seemingly archaic process of pumping-ausculting-deflating periodically ? Would such way show the high and low heartbeat …

I got blood type AB, and I've read in some newspapers and publications online, about pros and cons of the AB bloodtype. Though please note I'm not talking about the japanese personality mumbo jumbo, or the "eat right for your blood type" scams, I'm talking about scientific and statistical experiments hinting of blood type actually having a relevance at certain health issues. From what I can gather, the good sides of blood type AB is: + Often very good protection from Cholera, and the Norwalk virus. Some bad sides are: - Risk of stroke, and various artery diseases are skyhigh(I've read values ranging from 20% to 40% higher than those with blood type O), bec…

Blue light emitted from computers and phones has become a concern partly because of suppressing melatonin secretion at night, but also in part because it supposedly (I don't know how good the evidence is for this) has negative effects on the eye itself. Given all this, I was surprised to read recently that apparently there is some evidence blue light inhibits myopia progression. https://search.proquest.com/openview/2b430d393996982a099bb1bdc812da2f/1?pq-origsite=gscholar&cbl=18750&diss=y Blue light has been shown to have an inhibitory effect on both myopia induction and progression in both studies involving animal models, as well as human subjects. Specifically, …

I'm sure you've heard these claims as well, about the harmfulness of blue light emitted by computer/smartphone screens. If I have it correctly, there are two sources of supposed harm: 1. disrupts circadian rhytm Apparently, the blue light is of a color emitted by the sun, so if you use your computer/phone late at night, your body gets the impression the sun is out and this disrupts the circadian rhytm. 2. damage to some part of the eye The other claim I think I recall hearing is that the light actually does damage to some part of the eye. This may seem highly dubious at first blush, since we're exposed to blue light from other sources a lot and if…

I've seen some talk of blue light being bad for eyes and the circadian rhythm and it all, based on nothing but intuition, felt like bunk with no scientific backing. Is there actually any legitimate science behind this?

Hi all, not sure if this is in the best place so feel free to shift it if it's not I'm only an MLA at the moment in the Pathology labs. I'll be starting my BMS degree soon but I'm seriously considering my long term options now that I've had a taste of what exactly a BMS does. I understand that once qualified, a BMS would usually specialise. What I'm wondering is, if it's a BMS degree that the person has done, would there be any other options apart from becoming an actual biomedical scientist? Like maybe heading towards another area such as neurology, or going into research? It would probably be best to do a different degree if you didn't want to be a biomedical …

Why is a dead body so much heavier than a live one?

How is our body temperature is controlled? Why it increses during high fever?

I was watchin a documentry on discovery once about bones. (like 6 years ago) and they were talkin about repairing broken bones with cells that deploy acid mealting a layer of bone and calcium things folowing them deploying calcium. i just need to know the name of the cells....anyone know???

Does anyone know a dictionary(book) of illnesses and Symptoms of the illnesses?

I know that the best age for getting braces is around 10 to 14 years old but I heard that if you get your braces later than that age range, its possible for your teeth to revert back to what they were (in other words a waste of time adn money) before you wore your braces. so even though your teeth will be fixed in good positions when you wear your braces, maybe after a year or few years....your teeth will just revert back to the crooked positions they were before. Does any1 know if that is true?

In many psuchiatric/neurodevelopmental disorders extensive loss of grey matter and damage to white matter tracts is clearly present. In schizophrenia thinning of grey matter all across the brain is extensive, it can reach as much as 25% in some regions. What would be some potential strategies to restore lost grey matter? There is almost no neurogenesis in adult human brain outside a small part of hippocampus.

Dear All, A friend of mine met a road accident and an injury to his brain stem occurred.She is not able to berathe on her own since the day of accident (around 60 days)and her BP also has to be controlled from time to time.She is not responding to any external stimuli. However her digestion is working fine and doctors said she had mensus also recently. The doctors are unable to take a CT scan to check if any signals are in the brain as she is on ventilator support and they are afraid to move the patient. Her parents have tried pranic healing and alternate medicines such as homeopathy with no affect.The doctors are also surprised on how the digestion works normally but…

We can currently do transplants of lungs, kidneys, livers, etc. if those organs are damaged or diseased. Will we ever be able to do so with brains? I've heard a lot about the possibility of growing replacement organs in vitro or using 3-D printers to create replacement organs. When will we be able to do so with brains? What obstacles lie in the way?

Suppose we define 2 vision modus, as a priori function of the brain : modus A : both eyes are use together to count a moving point modus C : every eye is used alternatively, very quickly (CT) , or A seeing at infinity (CI) Then a) if a point is in the region seen by only 1 eye, then S says 1 point, A says 1 point b) if a point is in the region seen by 2 eyes, if focalised, A says 1, S says 2. Is this possible that in split brain operation this could happen ? We could imagine a PNL program to change this, maybe in the corpus. I imagined that A can learn from C modus, that is an object, let say a banknote is not seeable in both eye, that maybe th…

Biochemically speaking, how much bromelain should one take per 100 grams of protein and why?

Apparently buckyballs form naturally in minute quantities under extreme conditions such as lightning strikes. They are potentially as bad as asbestos dust is to our lungs. http://www.sciencedaily.com/releases/2008/05/080527091910.htm So, my question is are the lightening making rooms that many science museums have, could they be potentially hazardous due to the buckyballs that are created within them? Or does lightening need specific material present for the carbon-60 to be formed? Or, are we at greater risk just by going to something like a sandy beach where silica is supposedly an issue?

if anorexics don't eat anything and become really thin, then why do bulimics "maintain" body weight instead of end up the same as anorexicx when they purge out everything they've just eaten? doesn't purging pretty much take out all the calories that they once consumed.

Not really a concern. Caffeine is a diuretic.

Do calcium carbonate antacid to neutralize acids in stomach impair proper digestion when treating 'heartburn' ?

Hi everyone, Calorie restriction (CR) is the practice of limiting dietary energy intake in the hope that it will improve health and retard the processes associated with aging. Typically reducing an animal’s calorie intake by 30 to 40% of what is usual for that particular species, whilst maintaining a proper level of nutrition results in an increase in general vigour together with an increase in longevity. Note that this reduction in calorie intake includes a reduction in carbohydrate, fats and protein. This increase in life expectancy and general health for calorie restricted animals has been seen in a wide variety of experiments conducted in a number of organisms. …

If you're lost in the wilderness with no clue where you are or where the nearest civilization is, can you eat grass for sustenance until help arrives?

Something I was thinking about the other day. With our advances in the fields of in vitro fertilization and cellular manipulation, is it theoretically possible that we could, for lack of a better term, ‘engineer’ a person so that they literally have two biological mothers and no father per se? I’m not talking about in the sense of one woman providing the egg and the second woman providing the womb to carry it, though of course they could do that as well I suppose. Obviously in that case, only one of them would truly be their biological mother in the genetic sense (to be clear, I’m not making any sort of normative or judgmental claim here, I’m merely illustrating the thing…

Hello everyone, Charcot's triad is there to describe the clinical features of acute cholangitis. They are 1.Fever 2. Right upper quadrant pain 3. Jaundice 2 and 3 in charcot's triad is confusing to me. As I want to know if they occur due to cholangitis (infection) or due to gall stone obstructing common bile duct and then getting infected causing cholangitis. Is this charcot's triad made assuming that a gall stone causes cholangitis, or even without a stone would 3 features mentioned in Charcot's triad occur in acute cholangitis. Thanks

( I have posted this in the biology section recently, but think this is a better section for it.) I've done a lot of research and there is no all in cure for it. Here are things that may have to do with it. Sympathetic and parasympathetic nervous system pelvic floor muscles anxiety kegels/reverse kegels I've been to those forums where people have this problem and try to resolve it, I thought maybe if I want into a more science educated forum, I'd find better answers if someone looked deep into what may be the problem. -If it was anxiety/stress or the nervous system then alcohol should completely get rid of it during "Drunkness" but…