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1500 questions
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1 answer

Why are retinoids applied only after washing the face?

Is there a reason behind washing your face before applying retinoids? I do not know why this is required. Of course, assuming you haven't done anything dirty (like sweat) during the day. This is also recommended for benzoyl peroxide.
jiniyt
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Was "patient zero" a concept used in epidemiology before 1980s HIV investigation?

This question may possibly be a fit for English Language or History stackexchange. Recently it was widely reported in the media about the results of new genetic testing of early HIV samples. The reports showed two major flaws against the usefulness…
ziggurism
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When was congenital-analgesia (aka congenital insensitivity to pain), the inability to feel pain, clinically documented? How rare?

When was congenital-analgesia (aka congenital insensitivity to pain), the inability to feel pain, clinically documented? How rare is it really? Is it hereditary? Or just a sporadic fluke mutation? I know this condition sounds like it would be a…
Pills N Pillows
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Knowing the root cause of one's hypothyroidism? How to know if it's Hashimotos Disease?

Ever since I was a teenager, I've been treated for hypothyrodism (underactive thyrodid). However, I don't recall the official diagnosis process and am not sure if it was ever conducted. My grandmother, mother, older sister, who all lived with me at…
Butterfly and Bones
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Does daily hair wash reduce body heat and cause hair loss?

Does washing hair daily reduce the body heat? and Does washing hair daily cause hair loss or split hair or any hair problems and side effects in health?
Lakshmi Balan
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Can one learn whilst sleeping? Can one solidify a memory & study for exams by listening to recordings while asleep?

I have ADD (not ADHD) and I am a PhD student so concentration is something that I consistently struggle with on a daily basis. Though I do take medications take medications for adult ADD, I am still struggling to remember everything for my candidacy…
Butterfly and Bones
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5
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3 answers

How does resting influence the recovery time of a common cold?

It seems to be self-evident: If I have a cold, I stay at home, snug under my bed cover, drink a lot of tea and either sleep and let myself be distracted by a book or a movie, until I don’t feel weak anymore. But is there evidence that this actually…
Joachim Breitner
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Deafness and hearing aids and cochlear implants

I would like to know, what is the difference between a hearing aid and a cochlear implant, and what factors would determine whether you could have one and if so, whether you would want one? Thanks.
Jack Maddington
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Is there anything anyone can do to decrease the symptoms of dysmenorrhea?

Some women have mild discomfort with their menstrual periods; some have much more pain. Is there anything anyone can do to decrease the symptoms of dysmenorrhea?
user229650
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What are the health risks of consuming 6-8 liters (1.5-2 gallons) of water daily?

Are there any health risks of consuming large quantities of water at a time or throughout the day?
jiniyt
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What are the long term effects of dieting and maintaining a caloric deficit?

Are there any negative health risks for dieters assuming that you take a multivitamin, and other required supplements daily? The caloric deficit would end once the goal weight is achieved, which is how diets usually work, but unfortunately they can…
jiniyt
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Does Blue light filters in smartphones really work?

Since this is more of a health related question, asking this here is preferable than other sites. So, does such apps really do not disturb the production of melatonin? Does Blue light filters in smartphones really work? Are they really that…
MrObjectOriented
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What type of food (herb, root) helps with sleep?

Right now it's 3am local time. Ideally I'd like to follow a protocol that would put me into sleep. I've just had a juicy pear - it contains sugar that gives energy etc... From that standpoint it wasn't a great choice if I want go to sleep. What are…
Mars Robertson
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How to clean out all the earwax buildup in ears from hearing-aids if hearing-impaired? Q-tips are unsafe, right?

I was born with congenital bone fusions in several places in my body, one of those places are in the set of three small bones (malleus, incus, and stapes) in both my ears. Because they are fused, they don't vibrate. I've had several ear surgeries,…
Butterfly and Bones
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5
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2 answers

Ginger or garlic and common cold?

Is there any reason to believe ginger or garlic help curing or preventing common cold? I've heard this multiple times suggested as a home remedy. What does the science say?
vidstige
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