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Unanswered Questions

1,817 questions with no upvoted or accepted answers
21
votes
1answer
6k views

Should we rinse with water after brushing our teeth?

I've heard that rinsing with water after teeth brushing lowers or negates the benefits that fluoride provides to our teeth, but I've also heard everything in between; from there's no problem with it, ...
8
votes
1answer
140 views

Is it ineffective to drink cold water to cool down when you are warm?

I have heard many times that drinking cold water when you are warm is not an effective way to cool down. The most common supposed reason that I have heard is that the body needs to spend a ...
8
votes
0answers
84 views

Antidepressant response post MAOI tachyphylaxis

In 'Listening to Prozac' (Pg. 305) Kramer notes that once monoamine oxidase inhibitors (MAOIs) poop-out, depressed patients are often unresponsive to subsequent pharmacological interventions (and in ...
8
votes
1answer
1k views

What are the cures for gray hair?

As we know hair turns gray or white hair due to a lack of pigmentation and melanin. This article and study from 2006 and 2013 suggest that accumulation of H2O2 is due to oxidative stress which can ...
6
votes
1answer
102 views

Why is not possible to get HIV by touching a contaminated surface?

I was wondering if one could get HIV from basically touching a surface which have had viral DNA extract, serum, or blood on it; and then by touching their (bleeding) pimple or acne (or any other area ...
6
votes
0answers
150 views

Could rectal prolapse and bloody masturbation in 4 year-old happen absent abuse?

Disclaimer: I'm trying to find out more about some symptoms that could be signs of child sexual abuse - or could be naturally occuring. The case that brings the questions up has been reported to all ...
6
votes
1answer
17k views

What can cause foamy urine other than protein?

I have got foamy urine for half a year and I recently feel obvious pain and burp after urine. However, when I use a urine test stick to test my urine (sold here), everything goes fine (no protein, no ...
6
votes
0answers
59 views

Is opening the chest cavity still considered dangerous to the spread\growth of disease?

Talking to relatives, it sounds like it was once believed that opening the chest cavity generally caused the spread and growth of diseases such as cancer because of the introduced oxygen into the area....
6
votes
0answers
102 views

Is the blue light emitted by computer monitors deleterious for the human eyes?

Is the blue light emitted by computer monitors deleterious for the human eyes? By deleterious, I mean irreversible damage. I read some conflicting information: http://www.drweil.com/health-wellness/...
6
votes
0answers
64 views

What's caused by the chemicals, and what's caused by the smoke

The great many downsides of smoking are certainly well-documented by now (to say the least), but something I've struggled to find an answer to is the following: When looking at health risks of ...
6
votes
0answers
45 views

Can health be improved by viewing pictures or videos of nature on the computer?

This Is Your Brain on Nature, Story by Florence Williams, January 2016 ed. National Geographic Magazine (published online 2015/12/8) Measurements of stress hormones, respiration, heart rate, ...
6
votes
0answers
78 views

Why are people with certain blood types more/less susceptible to norovirus?

Infection with some types of norovirus appear to be rarer in people with some blood types than in others, see Norwalk Virus Infection and Disease Is Associated with ABO Histo-Blood Group Type, from ...
6
votes
0answers
127 views

cigarette vs exhaust gas

People always associate pollution to cars, but as a frequent biker, I don't really smell anything from exhaust pipes for all 'recent' cars. When a car passes me, I can always know by the smell if ...
6
votes
0answers
377 views

anodized aluminum, skin contact and health risks

Is there any health risks from wearing a watch made of anodized aluminum? Will aluminum get into the body through skin?
6
votes
1answer
117 views

Olive oil - healthy as a substitute, or in its own right?

There are many articles about extra virgin olive oil being healthy - for example here. This implies, at least, that replacing other fats in the diet (such as butter or other vegetable oils) with olive ...

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