Questions tagged [hygiene]

The set of practices perceived by a community to be associated with the preservation of health and healthy living.

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25
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1answer
17k views

Do I need to wash my hands after using the bathroom?

Source Is hand-washing after urination and defecation merely a product of social norms, or is there a health-related reason that we wash our hands after going to the bathroom? Or is there some other ...
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Does shaving with cold water produce a closer shave?

The claim is discussed at The Art of Manliness, as quoted from the book Shaving Made Easy (1824): . . . the author argues that the idea that a soft beard gives a better shave is a bunch of bunk and ...
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1answer
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Does standing closer to the urinal prevent urine splashes?

My work has a sign in the bathrooms requesting that you stand closer to the urinals to avoid splashing onto the floor. Is this actually a workable fact? My query is that if you stand closer, wouldn'...
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Does “Thieves oil” kill bacteria and boost the immune system?

Thieves essential oil is supposed to help keep you from getting sick by killing germs. Packed with powerful, germ-killing essential oils, the Thieves line helps eliminate airborne bacteria and ...
19
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1answer
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Does putting warm food in the refrigerator make it more likely to give you food poisoning than letting it cool off first and then refrigerating it?

My boss was arguing that this is true and that it's a well known fact amongst culinary professionals that you should never put hot food in the refrigerator (he used to be a baker and had restaurants ...
14
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Is it possible to crush bacteria?

For example by stepping on, stabbing with tiny needles or by pushing hard with thumb on a specific spot, etc? Can bacteria die in a car crash? Or as a result of playing football? Another situation ...
7
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Coca-cola and open water swimming

I've heard it claimed that Coke helps prevent infections. The Independent Some open-water swimmers drink Coke after racing, both for the sugar rush and because it is said to neutralise harmful ...
9
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384 views

Is using saliva as a dive mask defogger dangerous?

When diving, you can use saliva or commercial defog to prevent your mask from fogging. However, according to WikiHow, bacteria in saliva are potentially harmful to your eyes. Beware of using spit - ...
19
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1answer
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Do Americans use three times as much toilet paper as Europeans?

This article "5 Seemingly Innocent Ways You've Screwed The World Today" on cracked.com contains the following claim: Delicate American bottoms prefer plush, bleached white, multi-ply paper with all ...
42
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2answers
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Do hand sanitizers have a negative impact on the human immune system?

Related: Which is more effective at removing germs, washing with soap and water or using hand sanitizers? Does regular handwashing with antibacterial soap prevent disease? I've run across some ...
12
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1answer
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Can urine aerosols reach my toothbrush if I pee standing up?

My girlfriend insisted that I should sit down in the future after reading this tip (German) for easier cleaning: When standing, the stream sprays up to 3.50 m far, as measured from a drop height of ...
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3answers
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Is vinegar & baking soda an effective agent for disinfecting bacteria and mold?

I've seen a lot of references on the Internet stating that vinegar mixed with baking soda is an effective way to disinfect mold, bacteria, etc. I'm skeptical that it has a significant effect because ...
24
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Is it dangerous to mix boiled and unboiled water?

There is a popular belief in Russia that mixing boiled and unboiled water (say, adding cold unboiled water to a cup of tea to cool it) can be dangerous for one's health, even if it is safe to drink ...
12
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1answer
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Do I have to brush my teeth at least 3 minutes each time?

There are various claims about how long a tooth brushing session should last for proper dental hygiene. I have heard that 3 minutes is the time and that my tooth brushing sessions should be ...
6
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1answer
512 views

Are bugs and other pests “crawling with disease”?

This is heard very commonly when someone sees an unwanted animal, especially near food. Flies, roaches, pigeons, rats, etc. are all claimed to be filthy and disease ridden, warranting their ...
27
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1answer
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Is washing your hair too often bad?

This is one that I've heard on more than one occasion: "Don't wash your hair every day. Wash it every two days as washing it too often will damage it." Is there any truth in this? Can frequent hair ...
11
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2answers
369 views

Are disposable contacts unsafe beyond their recommended time limits?

My wife is fussing at me because I've been wearing the same pair of 2 week contacts for probably 4 months now. My experience thus far is to only replace if they either tear or develop irritation. The ...
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3answers
17k views

Do we need to clean our ears (remove earwax)?

Last year, I read on a newspaper that a research found that we do not need, or should not, clean our ears as the earwax comes out naturally and sticking in cotton swabs can damage our ears. Is my ...
20
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1answer
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Do hot baths damage skin or nerves?

I like to take showers and baths hot enough to leave my skin pink when I come out. One of my friends has a much lower tolerance to hot water and has said that that soaking in hot water can damage the ...
28
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2answers
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Is house dust mostly made up of human skin?

Fortean Times I first heard the claim that house dust is mostly made up of human skin on a TV show, when I was a kid (probably Cheers, where Cliff makes this comment at the beginning of a Season 9 ...
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Do expensive electronic toothbrushes outperform cheaper models?

There are a variety of different electronic toothbrushes on the market. If you ignore features like a timer that tells you when you have brushed the planned time, is there a measurable difference in ...
5
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2answers
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Windex > Vinegar + Water

Are Windex and other commercial window cleaners better at cleaning windows than vinegar and water (and other household chemicals)? For example care2.com suggests the following is the best window ...
10
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1answer
928 views

Do “naturally raised” animals contain less bacteria?

Related: Are artificial hormones in beef really something to worry about? Does organic food have more vitamins than nonorganic food? (kind of) I watched Food, Inc. (LINK) perhaps two years ago and ...
16
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1answer
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Are there airborne poop particles flying around bathrooms?

I've heard claims of airborne poop particles that fly into the air everytime one flushes a toilet. Here's some examples: HERE someone states that flushing the toilet "aerosolizes" water/poop into the ...
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3answers
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Are toilet seats extremely unhygienic?

We've already seen a few questions about toilet hygiene but these styles of questions/myths more or less assume that toilet seats are the bottom of the hygienic barrel. Is this true? To wit, I have ...
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1answer
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Did workers defecate in the hallways of the Palace of Versailles when they were building it?

I remember reading that workers pooped in the hallways of Versailles for their own pleasure some years ago, but can't find a confirming source by Googling. Can anyone enlighten me as to the actual ...
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3answers
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If I buy “flushable” wipes, can I flush them without problems?

I know they say "Flushable" right on the package, but are they? Do they break down fast enough to not cause problems in septic/sewer systems?
16
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Can one use microfiber cloths and products to “clean without chemicals”?

There's a company called Norwex, started in Norway and now in other countries including Canada and the US, which claim its products "Clean without Chemicals": Our line of cleaning products will ...
27
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1answer
9k views

Does wearing headphones for long periods increase dangerous bacteria in your ear?

I have heard this many times, sometimes worded as such: Wearing headphones for just an hour will increase the bacteria in your ears by 700 times I'm wondering, is this true and, if so, does it ...
18
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1answer
19k views

Is chewing your finger nails as bad as licking a public toilet seat?

I've heard the above mentioned many times growing up that chewing your fingernails will expose you to more germs than to licking a public toilet seat. Apologies for the provacative title, but here ...
71
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3answers
8k views

Is food still safe to eat within 5 seconds after being dropped on the floor (5 second rule)?

Today in the cafeteria my friend dropped a chicken wing on the floor and immediately picked it up and ate it. Afterward he claimed that the chicken wing was still safe to eat if it was consumed within ...
14
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1answer
3k views

Is it good to be germaphobic?

I have a friend (the same guy that believes calcium in water is bad for you) who is germaphobic. That is, he will avoid germs at any expense. For example, kitchen surfaces will be pristine, using some ...
15
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1answer
4k views

Is it more hygenic to keep the lid down on the toilet after use?

I remember a bit of folklore that suggested it was more hygienic to put the lid (that's the lid on the seat) down after use. Is this the case?
44
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1answer
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Are many allergies caused by too much hygiene?

One hears it once in a while that many allergies are due to people overly concerned with hygiene. The rationale is that growing up in a near-sterile environment will leave your immune system confused ...
61
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1answer
57k views

Is cleaning yourself with toilet paper cleaner than using water?

As a Westener, I've always been raised to believe that the best way to clean most objects is warm water and soap - self, dishes, clothes, pretty much everything. Except what is probably thought of as ...