Medical Science

The exact nature of sensory integration and coordination with the external physical environment represents one of the most fundamental questions of biology. Many animals are born with visual structures intact, yet never with fully developed visual acuity. Humans are no exception. So how exactly do organisms learn to measure and navigate their external environment? Eyesight does not provide the proper baseline "learning" mechanism, e.g. a fundamental feedback response that can be measured and evaluated and encoded. Yet it seems the fascination with HD tv's and "selfie" technology has completely taken over basic questions of biology; and science has been hijacked …

I'm not sure which forum section this belongs to, but here goes: I'm not expert, but still I have a theory called wall - not sure if this will help or not: Upon destruction or death (e.g. by infection, injury, etc) in certain cells responsible for interfacing between nerve system and cells responsible for receiving sensory information and actualize actions, human body makes a wall up thus promotion of growth or regeneration is disabled then ultimately a re-connection by nerve system is disabled. Why wall up? Maybe because of useless cells and / or to protect nerve system at first place or something like that. It is for deafness, paralyzed, and / or bli…

Where would I go in Canada to have tests done for poison in my body? Any ideas would be welcome. I couldn't find anything useful when I did an internet search.

ARE WE GOING ABOUT COVID-19 THE WRONG WAY Should we not be developing a vaccine that tells our immune systems to ignore the virus, not fight it. After all the virus can't harm us, our own immune systems do that by cytokine storms and leaving infected part of the body to fight the virus that can't harm us any how. we are festooned with viruses that have took millions of years for us to ignore.

At the beginning, about every health related person had an opinion on how to cure the pandemic. I stopped reading all claims that crossed in front of me. By chance, another came in front of me yesterday that decided to read, claiming deaths are caused by lung trombosis; and that treatment ought to be blood thinners and not the way it has been done so far. Occurs to me that a good probing method would be to count how many have died while being on blood thinning medication. Is there such a statistic that can be evaluated ? I have been on such medication for a few years after a coronaries procedure and had no covid symptoms at all while living a nearly unrestri…

So with the rise of "E-sports," people who tout sports over video games have shifted their argument from their previous "but sports are more normal" to their current "but sports are healthier." But there's a tradeoff. Video games don't give you exercise, but they're also less likely to get you killed. As such, that leaves the question. Why have sports in particular become the go-to standard for encouraging fitness? Parents drive their kids to sports practice, which burns more fossil fuels and fewer calories than if they rode their bicycles there. But then if they rode their bicycles there, they might be too tired to give it their a…

Hello! I would like to study a course which would enable me to become a member of a research group that is responsible for developing next-generation artificial body parts. Since it is a relatively new branch of medicine and so far covers only a development of smaller parts, e.g. bioprinted intervertebral discs, I find it difficult to find a proper course.. Perhaps the community would not mind pointing me in the right direction? Courses that are certainly related to this area: - Bachelor of Science - Biomedical Engineering: 3-4 years - .. perhaps to start with? - MD - Medicine: 7 years (?) - a little too much, IDK if entire medical course is necessary…

I think about it and had version that high Intensive training and explosive loads are not comfortable for afroamericans due to their natural properties. And although in big sports they cope with this normally, for example, they even lead in the sprint, boxing and so on, pharmacology and a specific professional approach to training and politics of sport cannot be disregarded there. And contrary CrossFit shows the general picture in mass-society. What do you think about it? And if it wrong opinion, what is real reason of this?

In the United States, being "over"weight is associated with physical inactivity, and with the overeating of fast food, which happens to be high in saturated and trans fat. So this leaves a question; when the medical community tries to determine what is supposedly the medically optimum weight based on age, height, etc... do they go by correlation or not? If not, what is their alternative to mere correlation, and if so, then how do they distinguish whether it is the weight that is causing those problems and not, let's say, the inactivity, the saturated fat, and the trans fat? If someone was physically active, but binged on unsaturated fats like avocado, fish, le…

Hello, There is much talk in various medical sources about so-called lactic acidosis being caused by lactic acid buildup following anaerobic glycolysis (see for example here or here). Then you have other, more biochemistry-focused sources explaining that what comes out of glycolysis is pyruvate (i.e. COO-), NOT pyruvic acid (COOH), and it is reduced into lactate (COO-), not lactic acid, which means that the molecule is already inonized and cannot further release any additional proton that would acidify the medium. What do you make of all this? There seems to be a major contradiction here and it’s strange that I can’t find anything on this issue anywhere onl…

Vitamin D's primary role is to allow gene expression to vary with the season. Do seasonal respiratory viruses make use of this seasonal variation in host tactics? Let's call this hypothesis H. We don't need evolutionary game theory to consider H plausible, but such a model will be sketched below. We know that virus droplet vectors lose effectiveness in warm and wet conditions. It is widely believed that this physical limitation is what accounts for their seasonality. Let's call this hypothesis W. W is in considerable tension with our modern climate-controlled …

TL DR: Is there anyone here knowledgeable about endocrinology, specifically hormone receptors, blocking them and upregulation? I'm wondering if you could tell me what is known about how receptor blockers cause regulation, specifically how long must you block a receptor in order to induce that response and how you might avoid that. THE LONG STORY: This relates to a potential anti-hair loss drug that runs into a problem related to this. The story is this: Clascoterone is being developed as a potential drug for treating male pattern baldness under the name Breezula (CB-03-01). Male pattern baldness progresses through DHT activating the andro…

Hi Everyone In my Opinion, the verdict of the Keira Bell case is the result of a horribly confused situation. According to the BBC News, she was given both puberty blockers and male hormones. In my view, it was obviously very wrong to give her male hormones but I think it was entirely right to give her the puberty blockers because they are reversible. I think that this case has caused terrible unnecessary damage to the cause of gender dysphoric children who will probably now be forced to irreversibly develop in the way they do not want to develop. If I was the judge, I would have penalized the Tavistock Centre for giving Keira Bell the male hormones but I would have …

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

Does Rosuvastatin cause birth defects? My aunt used it for three months without knowing she was pregnant and unfortunately it had been her first trimester. Are there any proven evidences in regard? if so, please be kind to mention here.

So seeing as how international travel helped spread coronavirus in the first place, obviously the most practical measure would've been to cut off the disease at the source. But I'm wondering... if instead of an outright ban, international travellers were met with a tunnel directly from the airplane to a series of quarantine rooms; with one entrance from the tunnel, and one exit into the rest of society; and no access to the exit until one has gone through a 14-day quarantine, then a first hermetically sealed door, gotten tested for it, tested negative, then a second hermetically sealed door and then out into society; would that have been just as effective in s…

I paid attention to 2 cases. 1. The main problem of diabetes mellitus is that the tissues do not absorb glucose, however, therapy is reduced to lowering blood sugar 2. Hypertension is a symptom of some kind of problem or genetically predetermined, depending on the characteristics of the organism, however, a general norm has been established and everyone is adjusted to fit it. Why is this approach not practiced, for example, for melanin content or the shape of the skull?

You might think I have a firm opinion, from the title, but I'm pulled both ways. I like watching boxing. (male) But there's no denying the brain damage it causes. Mohammed Ali is the prime example. You do get the odd death, but you get that in other sports, and if that was all there was it would be easier to be against a ban. But the brain damage happens to every boxer. You can't box and not take head shots. Many boxers show no sign of damage, but they definitely do suffer it, some more than others. I'm quite concerned about Saturday's World Heavyweight Championship bout between Anthony Joshua and Andy Ruiz. I've followed Joshua's career since before he b…

Hi, Most of you probably know by now, that science can be stressful and can cause anxiety. Some of the things it can cause anxiety and stress about are sex, food, exercise, contact with surroundings, and being close to people, not socializing with people and etc.

When a person is infected, survives and develops immunity, can they still transmit the disease to others? If no, how long after the infection before the person becomes a non-transmitter? I assume this varies, but what are some general timeframes?

I'm not sure where this topic belongs. For all I know, this thread will be moved to the Speculations board. Just to make it clear: I'm not a doctor or scientist. I am 100% for face masks and social distancing. However, it seems all too clear that face masks and social distancing are necessary but NOT ENOUGH. Just how much of a role does diet have in this pandemic? Over the years, I've seen many articles saying that consuming refined sugar and junk food weakens the immune system and promotes inflammation. (And they're not from the chemtrails brigade or the tinfoil hat brigade.) A number of negative factors have been making the pandemic especially bad here in th…

There was that report I think earlier this year about a team of Scottish researchers who'd, IIRC, reprogrammed t-cells to attack only cancer cells and cured cancer in mice. Have there been any new developments on that?

Hi Everyone I have read on some websites that the supplement Diindolylmethane lowers Estrogen and raises Testosterone and I have read on other websites that it does the exact opposite to this. What is the truth? Thank you very much. Kind regards Tim

Hello Everyone, Clinical Research is a branch of healthcare sciences. It refers to all kinds of research carried that are carried out on healthy or sick individuals. Thanks

I'm looking for a method to define level of stress (objectively, i.e. not with questionnaires) at home. The idea is to access general stress level of a person once every morning during considerable period of time (e.g. several months) - a non-invasve method instead of blood tests. There might be many stressors both psychological and physiological - from financial and family problems to junk food and hangover. The assessment shall be done at home, so simple means are required. It's possible to use home devices like home HRV and home EEG but both don't measure stress reliably (HRV does not measure mental stress at all, and home EEG are not reliable enough). …