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1500 questions
14
votes
2 answers
How much Vitamin B12 do you need?
Vitamin B12 is stored over a very long time such that vegans, for example, only get any signs or symptoms of B12 deficiency after a span of years, even though they have hardly any sources of the vitamin in their diets.
The dose required daily to…

Kuhlambo
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14
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1 answer
Facial hair hygiene recommendations
What is the best way to stop beard dandruff?
I wash my face regularly with Detol anti-bacterial soap, and for my hair and beard, I use a wide range of Pantene Pro-V products for my hair and beard (such as Repair and Protect, Sleek and Smooth) and…

ThunderToes
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14
votes
3 answers
Do computer glasses actually work?
It's very likely that I will be spending most of my life in front of a computer monitor. This is necessary for my profession and the fact that improving technology requires us to look at screens more. My eyesight is near perfect and I never needed…

Iarwain
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14
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1 answer
How safe are contact lenses?
Are there any side effects to wearing contact lenses for a long time? Is there any way that wearing them can damage your eyes?
I'm referring to long-term use that is within or close to the manufacturer's recommendations (removing at night, cleaning,…

Akshay Vasu
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14
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1 answer
How frequently should non-alcoholic mouthwashes be used?
Foreword: I ask this only for mouthwashes with no alcohol; so please omit alcoholic mouthwashes (which may hurt the mouth and may have been claimed to cause cancer).
My grandmother uses the Crest Pro-Health Rinse which contains 'anti-microbial…
user14
14
votes
1 answer
What forms of prevention of STIs are there?
Other than the condom, are there any other methods of preventing contracting STIs?
If so, do any of these also provide an effective form of contraception?

Tim
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14
votes
3 answers
Does the usage of sunscreen cause skin cancer?
I have heard that usage of sunscreen products causes skin cancer. Is this true, and if so, what are the ingredients in it that are reason for such a medical condition. Are there any safe products or methods of application that they don't harm skin.

Akshay Vasu
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14
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1 answer
In which order to put on a mask, a gown and to disinfect when visiting a hospital patient?
I’m daily visiting a patient in a hospital who has a high risk of infection. Before entering her room, I’m required to put on a gown and a face mask, and to disinfect my hands.
The gowns and masks are available in the corridor in front of the room;…

unor
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14
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1 answer
How do tubes help treat ear infections?
My young son keeps getting ear infections. The otolaryngologist want to perform surgery to put tubes in his ear drums. How does putting a tube in the ear drum help with the ear infections?

StrongBad
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14
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2 answers
Strength training vs Carpal tunnel syndrome
As a guitarist, I have often heard that it was not good to train your hand with certain aggressive strength training tools. Are the more aggressive tools for strengthening your hand (Finger Pullups, Grip Master, and the like in the image below).…

amalgamate
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14
votes
1 answer
How often is it safe to get general anaesthetic?
There's an eye surgeon in my running club and I told him I had general anaesthetic three times. He told me that's a lot. I've heard of people thinking general anaesthetic is bad, is there any scientific evidence? If it is dangerous, how often can it…

Celeritas
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14
votes
2 answers
Is smoking during pregnancy harmful to child and mother?
In what way does smoking cigarettes by the mother affect the child and the mother during the pregnancy? What are further consequences it might have during the pregnancy and delivery of the baby?

Akshay Vasu
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14
votes
2 answers
How to do laundry to kill and prevent athlete's foot fungus?
As you may know, one of the reasons athletes's foot and jock itch fungus are so hard to kill with OTC medicines like Lotrimin and Lamisil is because after you treat it, it is extremely difficult not to reinfect yourself with the fungal spores by…

public wireless
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14
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Alcohol consumption during pregnancy
In what ways does consuming alcohol affect a mother and her child during pregnancy? Can it cause serious effects on the baby that is yet to be born? Can it cause any consequences to the mother and child during the delivery of the child?

Akshay Vasu
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14
votes
1 answer
Does decaffeinated coffee inhibit iron intake as much as normal coffee does?
Apparently, coffee consumption can inhibit iron intake and in some cases is even linked to iron deficiency anemia, as Wikipedia says. It is unclear to me, however, how this happens. On the page about health effects of caffeine, I can't find anything…

Turion
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