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1500 questions
9
votes
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Implications of repeated low level head impact?
Given the recent highlighting of the long term health implications of head trauma and concussions in professional sports, has there been any research done on what level of impact is needed to produce these effects?
I have been a competitor in…

JohnP
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How do they make sure someone has really died before declaring them dead?
What is the way they determine someone died before declaring them dead?
There are stories I've heard of over the years, people who's heart stopped, were brain dead, fell under ice rivers for half an hour and miraculously survived. So there are many…

larry909
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1 answer
Is it possible to change person's blood group?
Is it possible to change person's blood group?
I know it is not possible to change person's DNA, so what about blood group?

Esther Beth
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Is decaffeinated coffee a diuretic?
Caffeine is a known diuretic, stimulates urine production, and I have even seen "potential dehydration" as one of the arguments in the perennial "is coffee good or bad" debate. It also changes blood pressure, although I don't know if it is only…

rumtscho
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Which herbal teas have been proven to energize?
Summary (TL;DR): In the interest of brevity, I abbreviate 'herbal tea' as tisane.
Is there any evidence that tisanes can energize? If so, which ones?
Please exclude teas with caffeine (eg black and green teas) or artifices (eg pepper,…
user14
9
votes
2 answers
Effect of antibiotics on breastfed infant
My 9-month old son has been diagnosed with mild bronchiolitis and prescribed 5 days of Azithromycin (not so much to cure a virus-induced bronchiolitis, but in order to prevent possible pneumonia).
Taking aside an obvious concern on prescribing…

vitvly
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3 Injections for Hep B Vaccine
It has been suggested by my employer that i should get the Hepatitis B vaccine to protect myself.
I have had two of the three parts, but this is the first time i have had a vaccine in more than one session.
The vaccine is in 3 doses, each around a…

Terry
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3 answers
What can the variability of strength be between different brands of supposedly identical medications?
I remember reading that medications are within allowable specs if they contain +/- 30% of the labelled strength. I can't find the source of that information in order to check its validity.
If that is the case, a 100mg pill would be considered to be…

End Anti-Semitic Hate
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In which order to disinfect/wash your hands after going to the toilet in a hospital?
In hospitals, they encourage (and sometimes require) visitors to disinfect their hands. Public bathrooms provide disinfection next to the soap.
After going to the toilet, should visitors wash and then disinfect, or disinfect and then wash their…

unor
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Does hyperthyroidism affect serotonin levels?
I have read that hyperthyroidism can cause depression. Is this because of low serotonin levels or is there is another cause? Does this kind of depression need to be checked by a psychiatrist?
Edit (if it is too broad I can remove this edit): Can…

Totoro
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5 answers
Why are carbs said to be fattening?
I have friends who are trying to lose weight and they keep saying they can't eat certain foods because it is high in carbs and carbs are fattening.
This doesn't make sense to me, I lost weight myself but all I did was look at the calorie content of…

Aequitas
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1 answer
How much of the difference in brain size is attributable to gender, not physical size?
I've been reading a paper regarding the effects of gender on grey matter and white matter, and one passage not directly related to the final result caught my eye:
As expected, intracranial volume in milliliters (ml), consisting of parenchyma,…

HDE 226868
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Can you cauterize a wound with gunpowder?
This question is based off a scene in The Revenant. In it, a character has a deep laceration across their throat which has been hastily stitched up. Upon drinking some water, they find that it passes straight through the stitched-up wound.
The…

aroth
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Long term effects and impact of masturbation
So, I'm bringing a kind of sensitive topic to here. Usually there are lots of articles on the web saying that masturbation is a good stress-relief mechanism and that it can avoid some kinds of prostate cancer and some other good things.
However …

JPedro
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2 answers
What is the cause of Type 1 Diabetes?
Type 1 Diabetes, also known as "Juvenile-onset" diabetes (due to the fact that it's often diagnosed early in life) is a life-threatening disorder characterized by the body's inability to to produce insulin, the body's primary means of regulating…

Shokhet
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