Questions tagged [environmental-health]

Use this tag for questions regarding physical, chemical and biological factors that may affect human health.

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116
votes
4answers
24k views

Are WiFi waves harmful?

Has it been proven that being exposed to WiFi waves is harmful?
68
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2answers
15k views

Is there plastic microfiber in 83% of tap water?

I've recently come across this Guardian article which cites a story by Orb Media. Tests show billions of people globally are drinking water contaminated by plastic particles, with 83% of samples ...
49
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3answers
40k views

Does regularly drinking from a plastic container cause cancer?

I drink water from my plastic cup regularly and a friend commented that it could cause cancer. He also added that I should not heat food in plastic containers or wrappings in the microwave as that ...
47
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3answers
23k views

Does staring at the sun cause significant, permanent harm?

Of course, I think I can safely assume if an eye is left pointing directly towards sun for a long period of time it does get major damage. However, staring at the sun also hurts very quickly. That ...
40
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1answer
1k views

Is it good (for your health) to shower/bathe daily?

I only shower once every few days, sometimes as little as once a week depending how oily/sticky I'm feeling (I lead a pretty sedentary lifestyle so I don't reach that stage daily). People around me ...
38
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3answers
4k views

Is water fluoridation harmful?

There’s a controversy going around whether the benefits of water fluoridation outweigh the potential harms. What is the evidence for the harm this may cause and what evidence supports the health ...
32
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5answers
5k views

Is wheat the cause of numerous, serious health problems?

This morning, I stumbled across a realfarmacy article which poses the question [Note: the linked page breaks in Chrome but worked in Firefox]: Why is there such a strong emphasis on the development ...
31
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1answer
4k views

Does 5G pose health risks?

Among others, the website RadiationHealthRisks claims: Second, according to experts, because of the shorter length of millimeter waves (MMV) required by 5G to support the bandwidth, these shorter ...
31
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1answer
7k views

Can running a fan while sleeping in a closed room cause death?

It is a widely held belief in South Korea that you can suffocate if you leave a fan running in a closed room while you sleep. Is there any truth or science behind this? (See Wikipedia on Fan Deaths)
30
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2answers
2k views

Are sunscreens necessary?

There are many warnings of skin cancer due to exposure to sun, which have turned sunscreen lotions/creams/sprays into a big industry. Apart from the problem in the product, my question is, are ...
30
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1answer
3k views

Is using a standing desk for several hours healthier than sitting at a desk all day?

Is working at a standing desk more healthy than working at a regular sitting desk? Source: Crackberry Blog Over the past couple of years there has been a lot of buzz about the health benefits of ...
28
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3answers
72k views

Does Marijuana deposit four times the tar in the lungs as tobacco?

This picture is from Emily Miller's Facebook page shows one lung divided into two parts one labeled Tobacco and one labeled Marijuana. The Marijuana side is substantially less-healthy looking and the ...
28
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1answer
3k views

Does Flint have a much lower rate of lead poisoning than it had two decades ago?

Does Kevin Drum's article Raw Data: Lead Poisoning of Kids in Flint describes the lead levels in Flint accurately? What you see is very steady and impressive progress from 1998 to 2013, with the ...
28
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3answers
11k views

Does grass alone produce enough oxygen for life?

Over a work happy hour tonight, two employees were talking about their different lifestyles -- one likes riding four wheelers, which the other considers to be recreational pollution. Somehow the fact ...
26
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1answer
41k views

Do cacti absorb harmful radiation emitted by computers?

It is a common belief that cacti absorb radiation; consequently, a lot of people put potted cacti by their computer as a safety means. Do cacti actually absorb radiation? Even if so, will a small ...
26
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1answer
4k views

Is eating boogers good for you?

Damn Interesting: There is an Austrian doctor who has gained notoriety by advocating the picking of one's nose and the consumption of the resulting bounty, particularly in children. Dr. Friedrich ...
26
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3answers
2k views

Is looking at an IR transmitter bad for your eyes?

I've seen some warnings regarding IR sensors and transmitters such as the 4th panel below for the Nintendo 3DS: The Operations Manual says, Do not get too close to the infrared transceiver ...
25
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1answer
11k views

Is prone masturbation detrimental to your sex life?

The term "Prone masturbation" refers to men lying face down and thrusting their penis into or against the bed, pillow, or something else. Healthy Strokes is claiming that: Prone ...
25
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1answer
31k views

Does Vitamin D created by sun exposure get washed off in the shower?

A recent article by Dr Mercola on a health advocacy web site makes a number of claims about Vitamin D production in your skin. The most surprising to me is the claim that you can wash off a ...
25
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1answer
6k views

Is sitting straight up the healthiest way to sit?

When I was in school, my teacher always told me "Sit up straight stop slouching!". I am sure many others have heard this too, the thing is though, sitting up with straight back is very ...
24
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2answers
13k views

Has 99% of the western continental Europe banned water fluoridation?

I keep seeing this claim about the unpopularity of water fluoridation parroted. Despite dental pressure, 99% of western continental Europe has rejected, banned, or stopped fluoridation due to ...
23
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3answers
4k views

Does organic food have more vitamins than nonorganic food?

Aside from the issue of pesticides there's the claim that organic food has more nutrients, vitamins and minerals than nonorganic food: Organic food is known to contain 50% more nutrients, ...
23
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2answers
43k views

Do memory foam mattresses give off toxic fumes?

I recently purchased a memory foam (polyurethane) mattress and was looking online to see how long they take to "air out". They produce a strong odor for awhile after manufacture. However, instead of ...
23
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2answers
41k views

Can excessive masturbation cause acne?

Many people believe excessive masturbation causes acne, among many other things (e.g. hair loss and erectile dysfunction - off topic for this question). One such site that claims or supports this is ...
23
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1answer
62k views

Can you get ink poisoning from drawing or writing on your skin with pen?

It's a common claim in school yards (and from parents?) that you should not draw on your skin with a pen, or you will suffer "ink poisoning". Here's an example for notability: a Facebook page called ...
22
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2answers
3k views

Are Unvaccinated Children Healthier?

Got this today on my facebook wall... Alarming New Study: Unvaccinated Kids are Healthier The study’s findings really make you wonder. Here’s some of the specifics: Vaccinated children ...
22
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2answers
12k views

Is water calcification bad for your health?

I have a friend, who adamantly believes that water calcification causes a number of problems, including poor health. He also said it made the water taste disgusting. He had recently installed a ...
22
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3answers
1k views

Did wheat nutrition change in the 1960s, causing health problems?

Mark's Daily Apple gives an example of a claim that I have encountered: that modern wheat bears little resemblance to wheat prior to the 1960s, and that this new wheat is the cause for the rise in ...
22
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2answers
886 views

Is lead exposure responsible for the rise and fall of violent crime in the US?

I just found an article titled "America's Real Criminal Element: Lead" via Hacker News that made an assertion about the cause of violent crimes that I found rather surprising. The article states that ...
21
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3answers
12k views

Is it unhealthy to live with cockroaches?

There are a number of cockroaches in my wardrobe where I keep my clothes. I have noticed that the cockroaches haven't done any damage to my clothes. I haven't seen the need to get rid of the ...
21
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1answer
2k views

Is sun protection clothing a real alternative to sunscreen?

I was reluctantly dragged along to do clothes shopping in Singapore today and all over the place they advertised clothing that has supposedly been coated with some form of UV protection. As far as I'm ...
21
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3answers
957 views

Does Roundup harm mammals?

In the anti-GMO debate, it is frequently suggested that the use of Glyphosate (trade name: Roundup) on Roundup-ready GMO crops causes environmental harm. Example claim: Natural News Monsanto's ...
21
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2answers
2k views

Do memory foam mattresses help reduce back pain?

Memory foam and related products have claims like TEMPUR Mattresses create a custom fit for your body, virtually eliminating painful pressure points and reducing your body’s need to toss and turn ...
20
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3answers
9k views

Does one drop of nicotine kill a horse?

There is a popular aphorism in Russia, translated as "one drop of nicotine kills a horse": , which is widely used on the anti-tobacco posters etc. Can 0.05 ml of nicotine really kill a healthy 400-...
20
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2answers
4k views

Can a pair of rats multiply to 200 within a year?

A story on the BBC News website makes the following claim: Brown rats are one of the planet's most serious mammalian pests, ruining crops and harbouring disease. Expert jumpers, climbers and ...
20
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2answers
6k views

Is standing near Lake Karachay for an hour fatal?

I read this 9gag post (Okay, 9gag isn't really reliable for facts), where it says : I then checked it at Wikipedia (Again, not the most reliable, really, but it does the job when necessary), and ...
20
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1answer
1k views

Is this new study on cell phone / cancer connection legitimate?

Insanely related: Do mobile phones have anything to do with cancer? I was just sent THIS article, which claims that a new study does show a link between brain cancer and cell phones: This new study ...
20
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1answer
2k views

Do more people drown in deserts than die of thirst?

I had first heard about the claim that more people drown in deserts than die of thirst in school maybe 30 years ago. The explanation is that sudden rains can create dangerous flooding in normally dry ...
20
votes
2answers
929 views

Do some ingredients in lip balm cause dry lips?

According to this LifeHacker article, some brands of lip balms actually cause the problem of dry lips rather than solve it. America News Now spoke to dermatologist Gary Slaughter, who found ...
19
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1answer
3k views

Are activities in which both people bleed on each other considered "No Risk" for the transmission of HIV?

My friend, who was a HIV care provider, claims explicitly that "no one has ever transmitted HIV through wound to wound contact" and that therefore there is no significant risk to hockey players ...
19
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1answer
28k views

Does washing your hair with a coal-tar soap prevent hair loss and accommodate hair growth?

I have heard several people, including both a former dermatologist and a hair-dresser claim that coal-tar soap can help prevent hair-loss. The Herbs and Home Remedies site recommends it (combined ...
18
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1answer
72k views

Does a cell phone emit 1000 times more radiation when its battery is low?

Found this gem on G+: The rest seems all extremely circumstantial except the very last item. The 'radiation' they're talking about, I'm assuming, is electromagnetic radiation - which would be weaker ...
18
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1answer
963 views

Are US sunscreens less effective due to FDA regulations?

A recent answer to the question Best sun protection for swimming on a sister site makes the claim "The US market version is hamstrung in order to pass FDA regulations" and expands with the ...
18
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2answers
5k views

Can WiFi waves cause headaches?

I saw there was a question about the harmfulness of WiFi waves, but i'd like to focus on the claims that they can cause headaches specifically; not the cancer-claims. Numerous people come up with ...
18
votes
1answer
5k views

Is it possible to get a sunburn if you're behind a (glass) window?

Someone recently told me that windows act as a kind of "magnifying glass". That doesn't make a lot of sense to me. Here's an example of someone with that belief (in the comments): Can a baby get ...
18
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1answer
1k views

Does breathing Beijing's air for one hour reduce life expectancy by 20 minutes?

I've just listened to this claim by a BBC journalist in Beijing: A recent study showed that even breathing this kind of air for an hour can reduce a person's life expectancy by 20 minutes. This ...
18
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1answer
2k views

Did nuclear tests on the Marshall Islands cause increased cancer rates?

The Marshall Island have been the site for many nuclear tests by the United States. While it has a small population of around 69,000, they have benefitted by receiving around $759 million dollars in ...
17
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1answer
4k views

Do desktop computers catch fire (often)?

My housemates don't want me setting up a home server because of fire hazard, I've seen very little, if anything, pointing to desktops causing fires, just laptop batteries (Can overheating laptops ...
17
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2answers
2k views

Are organic vegetables higher in carcinogens?

My common senses would have told me that organic vegetables are healthier and less harmful compared to vegetables treated with pesticides. A recent post on Quora made me think otherwise. Organic ...
17
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1answer
2k views

Does a dairy-free diet reduce autistic behaviour?

PETA (People for Ethical Treatment of Animals) suggest the existence of a link between milk consumption and autism spectrum disorder (ASD) (see here on the PETA website). More research is needed, ...

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