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What is the percentage of woman without a hymen?

The Wikipedia entry (https://en.wikipedia.org/wiki/Hymen) suggests that Hymen can be completed absent inborn. I read through the textbook referred by Wikipedia, but that textbook does not include any data on this; the textbook also made this claim…
High GPA
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Does mastectomy permanently prevent using the arms for blood samples?

This question, Why can't blood samples be taken from the legs/ankles as well arms/wrists? , refers to Specimen Collection Procedure - PERFORMING A VENIPUNCTURE | Akron Children's Hospital, which says: Sites to avoid: … The upper extremity on…
Ray Butterworth
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Can a calorie be neither protein, carbohydrate, nor fat?

I recently started using MyFitnessPal to try to lose weight and I noticed that a particular beer I had drunk has a tremendous number of calories relative to the number of grams of carbs it contains compared to something like rice or oatmeal. This…
5
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What's the mechanism of urinating?

I googled and read about the kidneys, bladder, and urethra but no source explains the dynamic process. From my own personal experience, the process has four stages: The muscles are in normal mode. Then, a feeling comes that you need to empty the…
user2824371
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Illnesses from indoor Mold growth: Chronic Inflammatory Response Syndrome (CIRS)

Has anyone heard of Chronic Inflammatory Response Syndrome (CIRS)? Would you say it is a real illness that can be treated? It is described as a multi-system, multi-symptom illness. There are peer-reviewed research papers written about it available…
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Why does dandruff shampoo loose effectiveness without shampoo alternation?

I've heard often 1 2 that alternation between anti-dandruff shampoos containing ketoconazole, zinc pyrithione, coal tar, selenium disulfide or salicylic acid is needed for the treatment to stay effective. How come that after using the same…
Bob Ortiz
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5
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Why are telemedicine services regional?

In trying to find information about available telemedicine skin cancer screening services, I've noticed that many telemedicine services are only available to a specific region. They service a few large cities in the USA or a handful of states or…
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How long does it take for heroin withdrawal to begin?

If a heroin addict is unable to shoot up again, how soon after the most recent dose will serious withdrawal symptoms occur? Is it a matter of hours, or days?
Wad Cheber
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How does cold weather affect blood flow, heart beat, and heart attack?

When I said cold weather makes the blood not flow as well in the body, I would get the refutation that human body has a constant temperature in warm or cold weather, possibly at 36.7°C (or 37°C), because humans are warm blooded animals. But in the…
nonopolarity
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How to tell the difference between not so serious wrist, finger, arm pain/strain/weakness and carpal tunnel syndrome?

Many people now a days, use the computer a lot. A very lot. I'm guessing it's normal to feel some slight discomfort, small pain regularly in your dominant hand, wrist, and/or underside of forearm if you use the computer for greater than 5 hours a…
user147
5
votes
2 answers

When should one go to an Urgent care vs Emergency room?

Traditionally, I knew that when one has a medical emergency that can't wait for a doctor's opinion, you go to the emergency room. Now, I see that there are Urgent Care centers around. So when would one go there vs an actual emergency room? For…
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Is there an established recommended maximum intake of cigarettes?

Recommended maximum intake of alcoholic beverages tell you that it's up to 1 drink per day for women and 2 for men. Is there an equivalent for cigarette smoking?
jiniyt
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Took a daily prescription pill but vomited shortly after

Lets say a person is sick with the flu currently. They also take a regular daily prescription pill which should only be taken once a day. Scenario: Fred takes his prescription pill today, but then like 10 minutes after taking it he throws up.…
user147
5
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1 answer

High level of Vitamin D,1,25(OH)2, Total

I recently got blood test results and they say Normal Range, High level of Vitamin D,1,25(OH)2, Total = 18 - 72 pg/mL but my level is 96 I was researching this and found that it can be due to supplements, but I am not taking supplements with…
Rhonda
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How are the administration times for medications determined?

Many prescribed medications give a rate at which to apply the medication, and "over-the-counter" medications often have a minimum time period between dosages the users of the medications are not to go under. How are these numbers determined? I…
Ryan1729
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