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27 votes
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Is "smokers lungs" a lie?

So my question is: Are smokers' lungs visibly and routinely blackened and/or discolored in the absence of lung disease? That last phrase is tricky, because smokers who have heavy pigmentation are ...
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25 votes

If human life is so long largely due to modern medicine, does every illness shorten lifespan?

Both. Human cells largely exhibit a phenomenon called senescence - they just give up and die after they reach a certain age via a biochemical mechanism called apoptosis. The outer limit of ...
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12 votes

If human life is so long largely due to modern medicine, does every illness shorten lifespan?

The claim of modern medicine being responsible for longer lifespans is of course a statistical claim, i.e. the average/net effect. Thus your second assertion does not follow logically. Though it is an ...
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  • 492
7 votes

In a viral infection, which symptoms are caused by the virus itself, and which symptoms are caused by the body fighting the virus?

To provide a brief answer, as I think a sufficient answer would be far beyond the scope of this site, the symptoms that are "generic" to the common colds are all caused by the body's response to a ...
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7 votes

Are there diseases for which infection does not grant lasting immunity but a vaccine does?

Rabies is almost 100% fatal so there is no chance to develop immunity. So, post-exposure vaccination is used if the person has not been vaccinated prior to exposure. Rabies is a vaccine-...
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7 votes

Are there diseases for which infection does not grant lasting immunity but a vaccine does?

Varicella zoster - you can get infected and then develop shingles recurrences which are preventable using vaccination eg Shingrix https://www.cdc.gov/vaccines/vpd/shingles/public/shingrix/index.html
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  • 196
6 votes
Accepted

How long is infectious mononucleosis contagious?

You picked an interesting virus (and illness) to ask about. There are still a lot of studies being conducted and many of the answers aren't in. A bit of background. Epstein-Barr virus (EBV - the ...
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6 votes

Medical database with symptom frequencies

Nature Communications have such a database. Human symptoms–disease network XueZhong Zhou, Jörg Menche, Albert-László Barabási & Amitabh Sharma Published: 26 June 2014 They count the number of ...
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  • 1,513
6 votes

How do doctors go about diagnosing uncommon diseases?

My question is, statistically most cases are horses, but how do you find the zebras? The answer is... complicated. I will answer first from my experience as a (US) physician, and secondly, from a ...
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5 votes
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Not taking bath or shower when sick

Is there any evidence that taking a bath or shower when sick has negative effects? This is quite interesting because I've heard MANY patients with this same belief. Some people believe that bathing ...
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5 votes

Is asthma a disease?

This is very dependent on what one defines as a disease. There are people who only count acute conditions and/or infections as "diseases" though I wouldn't have expected a doctor to make this ...
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  • 6,998
5 votes

Does chronic Lyme disease really exist?

The answer is "of course," but one must be careful about defining terms. Certainly the infection can persist for years in untreated patients. That qualifies as "chronic." There is no question that ...
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5 votes
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Is walking pneumonia aka mycoplasma pneumoniae curable?

Fortunately "walking pneumonia", also known as atypical pneumonia, is not a lifelong condition. Atypical pneumonia can be caused by various bacteria and viruses. The most common bacteria that causes ...
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  • 1,251
4 votes
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Does wart treatment (such as freezing) kill the wart or only triger the bodies natural immune reaction?

It does both. The center of the wart is weakened/killed with the acid/nitrogen(cold), while the periphery is damaged (both the wart and the skin around it). Because the wart is weakened, the body'...
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  • 1,205
4 votes

Where I can find infomation about ALL diseases of human beings?

Is there any book or website about ALL diseases were officially registered ever? The best you're going to get is the International Classification of Disease (ICD) which is developed by the World ...
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  • 690
4 votes
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Ulcerative Colitis Disease Activity

N.b. My institution does not have access to this journal and the upload you made has since been deleted There are a number of ways of scoring the severity of ulcerative colitis on endoscopy; there ...
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  • 471
4 votes
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What is a terminal or chronic illness? What is the difference between the two?

Erm, the term chronic illness in itself isn't unambiguous, in the scientific literature it is used in different ways: The academic literature is not immune to the same kind of terminology ...
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  • 6,480
4 votes

Is there a virus from which humans can recover, but which doesn't grant long lasting immunity?

Seasonal coronaviruses come back year after year and we continue to suffer with them Researchers do know that reinfection is an issue with the four seasonal coronaviruses that cause about 10 to 30% ...
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  • 13.2k
4 votes

How do doctors go about diagnosing uncommon diseases?

The UK National Health Service estimates that 80% of rare diseases have an underlying genetic etiology¹. Thus, rare diseases diagnosis now and in the near future is mostly a function of: Having a ...
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  • 2,049
3 votes

Disease and Conditions

there's a discussion of this point here Condition is perhaps the least specific, often denoting states of health considered normal or healthy but nevertheless posing implications for the provision ...
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  • 13.2k
3 votes

Database with diseases and symptoms?

There's an App call Ada. It's only available for iOS. It's an IA based bot that ask you about your symptoms and gives you a diagnostic. It was pretty accurate with some regular illnesses. It's much ...
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3 votes

Is there any efficient treatment of Tinnitus (Ear ringing)?

Is tinnitus curable? No, there is no cure for tinnitus. It is connected to a malfunction in the neurons which turn the signals from the ear into the perception of hearing. The usual cause is that the ...
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  • 2,770
3 votes

What is the solution for Chikungunya?

Since 'the cure' or rather a vaccine against the virus is still only on the horizon, affected populations have to resort to prevention measures and supportive care, once the infection breaks out. Even ...
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  • 6,757
3 votes

Are Drug toxicity, Infectious toxic disease, Hypoxia & Malignancy all Acquired Metabolic Diseases?

When you classify diseases by causes, you put a disease in a certain group according to what happens first in that disease. For example, pheochromocytoma, a tumor of the adrenal medulla, releases ...
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  • 15.6k
3 votes

What ages are included by 'the young and the elderly"

Young: Definition of Older Adolescent and Young Adult: For the purposes of this review, the older adolescent-young adult age range is considered to be 15 to 29 years of age. Most of the ...
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  • 15.6k
3 votes
Accepted

What are some medical conditions and disabilities that might prevent someone from wearing a face covering during the COVID-19 outbreak?

My interpretation of this advice is that it is creating a necessary loophole for, say, someone's physician to state that a patient should not wear a mask. Maybe it would include people on supplemental ...
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2 votes

Is there any efficient treatment of Tinnitus (Ear ringing)?

While there is no single treatment to tinnitus as a variety of reasons can cause it some kinds of therapy might help ease symptoms. Tinnitus is a symptom and not a disease so it is helpful to pinpoint ...
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  • 236
2 votes

Preventing illness (colds, sore throat etc.)

First, let me say that I highly doubt your assertion that workouts make you more likely to get ill than someone who "just goes to the office & back each day." I don't know what you base that ...
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  • 9,314
2 votes
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Does chronic Lyme disease really exist?

Does chronic Lyme disease really exist ? Let me rewrite that question: "Does infection with Borrelia species persist in patients treated aggressively with antibiotics? (Treated beyond the IDSA ...
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2 votes

Tuberculosis: Lung scarring and weight gain

Tuberculosis and scarring That scar on the X-rays is likely a leftover from either a lymphadenopathy or a lung cavity. A lymphadenopathy is a swelling of the lymph nodes and appears in almost all ...
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  • 6,998

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