All Questions

This preprint, which was just released today, says that while some of the Covid-19 variants evade antibody immunity, they do not evade T-cell immunity. It says that this is true both of T-cell ...

I don't understand why do MRI Scan and CT Scan take more time than X- Ray? Depending on the size of the area being scanned and how many images are taken, the whole procedure will take 15 to 90 ...

According to this article, the UK lockdowns have had the effect of virtually eliminating Flu. As most of Europe/ The World has seen similar lockdowns, my expectation is that this would be reflected in ...

In research journals, there are often operationalisations of such terms as "muscle cross-sectional area", and "muscle volume", and "adipose tissue volume" by means of MRI ...

Exactly the same question posed here, except with reference to the new Johnson and Johnson viral vector vaccine rather than mRNA. Why is the new mRNA vaccine unable to modify human DNA? I was able to ...

Reduction in social contact, without full restriction of social contact, creates an environment where the 'success' of a virus depends more on how infectious it is and less on how good it is at ...

From the Consensus guideline for the diagnosis and treatment of tetrahydrobiopterin (BH4) deficiencies: Apart from BH4Ds, the differential diagnosis of HPA includes phenylalanine hydroxylase (PAH) ...

As far as I have understood it, persons who have contacted virusses (that are to a substantial part transmitted through the air, such as covid-19) tend to be only or most strong infectuous during a ...

From sources such as here the consensus seems to be that Candida Albicans is not an STI, but can be "passed back and forth" if engaging in intercourse with the same partner. So, why would ...

I fear that my sperm count decrease If I work in hot zone. How to care of health if I work in hot area? I work in steel factory, where radiation from hot bodies are frequent.

Is there any reason NOT to vaccinate with more than one COVID 19 vaccine? For example, Pfizer in January and JNJ in April. Nothing returned via Google.

In the context of contact tracing, I tried to find whether the number of contacts people have follows some well known distribution, e.g. Gaussian, Zipf etc. But I'm coming up empty. Were any such ...

I am aware that SARS-CoV-2 shows overdispersion, that is that many infected people cause no subsequent infections, but a small number of people cause very many infections (superspreading). The best ...

There is so much in the popular media these days addressing “how long antibodies last”, but I’m rather wondering whether two things are being conflated. When someone speaks of “having antibodies”, it ...

At 15 separate days Alice spends 1 minute in close proximity of Carol, who is infected with COVID-19. Bob on the other hand spends 15 minutes on one day with Carol, who is infected with COVID-19. ...

Is there any difference between these two words ? Which is better to use for general speaking?

I am a PhD in nuclear engineering with my main expertise being defense. For reasons that I won’t explain and that are not important to formulate an answer, either I will go back to civilian research ...

In Parkinsons disorder the substanstia nigra pars compacta get affected and there is destruction of the dopaminergic neurons, which ultimately disturbs the direct and indirect pathways. Now we know ...

I have a data set with a variable titled "causes of death" examples of death include: "bronchitis, pulmonary apoplexy, pneumonia, convulsions, fever, alcoholism, atelectasis,  stomach ...

I've recently learned that the plant takes up endophitic micro organisms and will deposit them on its seed giving the the seeds an inocculent so the seedling has a fast start in life with its own ...

I don't wear glasses myself but some of my family members do. My cousin recently got new glasses and she's been having trouble with them. She had been trying her best to use the new glasses because ...

Suppose I ate some amount of mercury, which is a substance, that may cause neurotoxic effects & hence decrease my thinking abilities– Those thinking abilities include: Speed of problem solving (...

So, I found a tin of Altoids Strawberry Mints and I accidently ate the entire thing. Now, about 10 minutes later, I am experiencing constant bloating and diarrhea. Should I see contact a doctor, or ...

Rh disease is caused by the irruption in the fetal circulation of anti-Rh(D) antibodies. This only happens when there has been a prior exposure of the mother to Rh+ RBC. To prevent Rh sensitization ...

Certain COVID-19 vaccines such as the Pfizer BioNTech and Moderna are specified to be administered in two doses separated by a 21 and 28 day interval, respectively. My questions are: Why administered ...

Grace Meachim, 32, from West Sussex, was unaware that she was 37 weeks pregnant as she had no visible baby bump, was taking her contraceptive pill "religiously" and still had periods. ...

Can someone, after having anger to a large level or anxiety to a large level, develop mental retardation? In simple words, can someone being normal and mental sound, become mentally retarded in just a ...

A space pod containing an astronaut drifts out to space and cannot be rescued. The space pod contains no insects, and the only bacteria present are those originally brought in by the astronaut. There ...

I have used braces when I was younger and got my teeth properly aligned. However, the other day I noticed that one tooth seems to have changed its position. I read here that The longer the amount of ...

I have came across two questions on the topic, however they both seem to assume that mouthwash is beneficial. • How frequently should non-alcoholic mouthwashes be used? • How often should I use ...

If the baby's head is truly engaged at 38 weeks in a primigravida, how is it that obstetricians can feel the presenting part of the fetus at the ischial spine if the cervix has not yet dilated? How is ...

As a result of unusually low temperatures and power interruptions many the water distribution systems of many municipalities have been disrupted in Texas. So many of them have issued warnings to boil ...

There are quite a few studies on the impact of vitamin K2 supplementation on calcification of the arteries. For example: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4566462/ https://www.ncbi.nlm.nih....

I am unable to understand the molecular mechanism of hPL induced insulin resistance. Sharing of relevant article/text would be of immense help.

I have done research on the various different types of bone fractures however I am not able to find any resources discussing specifically the severity of fractures. For example I had assumed that the ...

Several physicians (incl. a professor of allergology) told me and insisted that people with allergies must avoid certain foods, such as citrus fruit, cocoa, chocolate, jams, lunch meats, all nuts, ...

Darker skin is desirable to some individuals for a variety of reasons: UV tolerance, reducing skin cancer risk, aesthetics. While a number of other approaches exist, mostly to which solar exposure ...

In the context of a new drug going through trials, what does "favorable pharmacological profile" mean? e.g. YTX-7739, a potential disease-modifying therapy for Parkinson’s disease, was safe,...

There are few SARS-Cov-2 vaccines that use adenovirus vectors as vehicles (human's Ad5, Ad26, chimps' ChAdOx1, probably something else). A side effect of such a vaccine is that an inoculated organism ...

I am writing a book in which my protagonist is hit by a car in a foreign country. Her injuries need to prevent her from traveling home for 4 to 6 weeks. And be in need of a person to care for her ...

My parents have been using infrared lamps for a while now to treat sinuses, headaches (and other body parts) and for home treatment in general. I am wondering if these lamps are really effective in ...

What is the timeframe one can reasonably expect for elevated serum Methylmalonic Acid and Homocysteine levels to be normalized by supplementation (e.g. 250 μg daily cyanocobalamin), assuming ...

The lingual surfaces of the incisors tend to accumulate more tartar and stains than any other location. I'm not asking about how to remove or prevent stains, etc. I'm asking why that specific area is ...

In the USA, consumer-directed advertising for prescription drugs seem to always include, among other warnings, a contraindication warning not to take them if you are allergic to them (e.g. "Don't ...

I have often heard the theory that the waves in, for example, the UK, were caused by a harsh lockdown, followed by a release that kicked off the second wave. To my knowledge, Sweden did not relax its ...

Looking at the death counts for 2020 published on the CDC's website, total deaths "involving COVID-19" were 375,581, but total deaths "involving COVID-19 and pneumonia" were only ...

It is my understanding that both mRNA vaccines encode for a pathogen-like protein that prompts the immune system to bind to the simulated pathogen and render it harmless. Does the Pfizer and Moderna ...

In a recent paper on why hydroxychloroquine doesn't really work against Covid-19, it's been demonstrated that SARS-CoV-2 is much better at taking advantage of TMPRSS2 at the cell membrane surface, so ...

Context: It is a sudden trend now that in India the corona virus cases are decreasing (as of 2/11/2021) but I simply can not understand why this is happening. The reasons shown in news articles like ...

I've been reading online about brain tumors and stumbled upon this page : Pagelink what caught my attention is a section of this page talking about Executive functions . My question is , are there any ...