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25
votes
5answers
4k views

Does CO₂ cause Global Warming?

I know there is global warming, and I know that it is caused by human activity, but is carbon dioxide the cause of it? I read somewhere that apparently increase of CO₂ doesn't cause the increase in ...
64
votes
2answers
8k views

Does water have a memory as claimed in homeopathy?

In homeopathic remedies the original substance is often diluted to a point where statistically there should be not a single molecule left of the original substance. The most common explanation by ...
18
votes
3answers
2k views

Is sleep training a form of neglect or harmful?

Some people claim that "crying it out" is harmful. For example, the article on PhD Parenting states that crying it out is harmful to a child. I've heard others suggest that it's neglectful. I expect ...
37
votes
4answers
4k views

Is it possible to “boost your immune system”?

I often hear claims that some activities, nutrients, ... "boost" your immune system. My understanding of the immune system is that it is a finely tuned machine with enormous destructive power. If ...
52
votes
3answers
6k views

Is Barack Obama a natural born US citizen?

In this Politico Article dated 8/5/10 the results of a poll taken on President Obama are discussed: The poll of 1,018 adults shows 27 percent of Americans believe the president was “probably” ...
24
votes
1answer
4k views

Do those hologram bracelets do anything at all?

Bracelets such as Energy Force and Power Balance bracelets claim to improve balance, agility, strength, etc. The demo at the health expo seemed pretty convincing but how can it possibly work?
21
votes
1answer
4k views

Does Masaru Emoto's experiment show human consciousness affects the aesthetics of water crystals?

Japanese author and doctor of alternative medicine, Masaru Emoto claims that water can react to intentions. Talk nice to water and you get nice looking ice crystals from it. Mention Adolf Hitler near ...
13
votes
2answers
1k views

Is aluminum in pans, soda cans and antiperspirants correlated to Alzheimer's?

I have not only heard the soda can theory since I was a kid, but more recently when researching the topic I have found many websites that claim pans made of aluminum and antiperspirants are correlated ...
35
votes
3answers
3k views

Is secondhand smoke dangerous?

There seems to be little doubt in public opinion that second hand smoke is dangerous, and I can see why. But many smokers have claimed to me that it is not dangerous at all and it is all media hype. ...
31
votes
1answer
8k views

Can HAARP affect weather or earthquakes?

Project HAARP is a favorite target of conspiracy theorists. It has been blamed for causing the Haiti earthquake, the recent Japanese earthquake and many, many other events. The High Frequency ...
13
votes
2answers
6k views

Does earthing reduce oxidative stress and inflammation?

The other day my friend asked what I think about "earthing" claiming that their products provide electrons we used to get from walking barefoot on the earth surface and that they have positive (...
222
votes
4answers
27k views

Does hot water freeze faster than cold water?

Is it true that hot water freezes faster than cold water and if so, what practical applications have there been found for this phenomenon?
102
votes
5answers
15k views

Is the Earth 6000 years old?

Dr Kent Hovind, a noted American Young Earth creationist, claims that the Earth is only 6000 years old. When I was growing up, I was taught in school that dinosaurs come from at least millions of ...
104
votes
6answers
14k views

Is smoking weed bad for your health?

Some people believe that smoking marijuana (without any tobacco) is harmful to your health and may cause problems. Examples of things I've heard weed supposedly causes: All the health problems of ...
107
votes
3answers
8k views

Do we only use 10% of our brain?

I've heard claims that the average person uses only 10% of their "brain power," whatever that means. The implication, though, is that there the majority of our brain's potential is untapped. However, ...
89
votes
2answers
8k views

Is a vegetarian (vegan) diet more healthy?

According to Wikipedia, Vegetarians tend to have lower body mass index, lower levels of cholesterol, lower blood pressure, and less incidence of heart disease, hypertension, type 2 diabetes, renal ...
87
votes
1answer
18k views

Is masturbation bad for one's health?

This question has probably been asked by almost everyone at some point in their lives. But the answers we receive vary from "it is very good" to "it is very bad". I can understand that becoming ...
116
votes
2answers
14k views

Can every grain of sand be addressed in IPv6?

I was once watching a slideshow about the new IPv6, and it mentioned that it is large enough for every grain of sand on earth to be IP addressable. Is there any grain of truth behind this? (no pun ...
45
votes
4answers
11k views

Are men smarter than women?

I recently stumbled across the following article: Sorry, men ARE more brainy than women (and more stupid too!) It's a simple scientific fact, says one of Britain's top dons, in which the author claims:...
43
votes
3answers
5k views

Does child rearing by homosexual couples have any measurable negative effects?

There is a widespread belief that there are adverse effects on children reared in same-sex-parents households compared to male+female household (I can add random googled cites if necessary, but the ...
52
votes
1answer
13k views

Is there any harm in forcing/re-educating a left-handed child to use their right hand?

Backstory: Many of my relatives were subjected by their parents to a "training process" to "prevent" left-hand-dominance. This method started at a very young age and basically consisted of politely ...
33
votes
3answers
4k views

Did Muhammad exist?

What contemporary historical records of the existence of Muhammad, the prophet of Islam, exist or are known to have existed at some point?
54
votes
1answer
20k views

Can standing in front of a microwave oven give you cancer?

I was heating up some lunch in the microwave oven at work a few weeks ago, and peered into the window to see if my soup was bubbling yet. At that point a coworker walked into the lunch room and ...
53
votes
1answer
4k views

Do the Left Brain and Right Brain have different functions?

I've heard that the left brain controls the logical aspects of the thought and right brain controls the creative. Is there any truth to such claims?
57
votes
5answers
7k views

Any Scientific Basis for Neuro Linguistic Programming?

Over the years, Neuro Linguistic Programming (NLP) has been creeping into popular culture. It is used by a lot of self-help gurus, and also in context of the right way to educate and learn (e.g., ...
44
votes
5answers
7k views

Does the Quran advise men to beat their wives if they disobey them? [closed]

I found this post on Reddit in which it is mentioned that the Quran advises men to beat their wives if they do not obey them. This is a quote from the link: Surah 4:34: "Men are in charge of women ...
40
votes
1answer
3k views

Does eating carrots improve your eyesight?

A common belief in Sweden is that carrot improve your eyesight and I was told many times when I was little to eat carrots. Although anecdotaly I have perfect vision without carrot-gluttony. Is there ...
35
votes
2answers
2k views

Did a nocebo study find that rashes could swap hands?

In an answer to another question, the following story was cited. Another interesting one that demonstrates both the placebo and nocebo effect in one study is a study done by Japanese researches on ...
27
votes
1answer
3k views

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 ...
34
votes
2answers
4k views

Is diet soda less healthy than regular soda?

The top 10 worst foods listed at planetgreen.com elects diet soda as the number one worst food/beverage, even worse than regular soda. However, I find it a little hard to believe, since the number of ...
45
votes
6answers
5k views

What risks exist with GMO, but not with selective breeding?

Anytime you hear Genetically Modified Organisms (GMO) come up, someone always pipes in that it's perfectly safe because we've been doing it for thousands of years through selective breeding. ...
31
votes
2answers
3k views

Does this graph show climate-change predictions don't meet observations?

Dr. Roy Spencer, a climate change contrarian, posted this graph on his blog claiming that observed temperature trends are much lower than what climate models predict: Is Spencer misrepresenting what ...
31
votes
1answer
4k views

Can an average person be involuntarily hypnotised?

Often hypnotism is accomplished by convincing an audience member to play along, or by selecting out someone who is suggestible. Can an average person be involuntarily hypnotised? Update: Let us ...
26
votes
5answers
7k views

Is salt “white death”?

Salt is sometimes known as "white death" due to the belief that an excess intake of salt can cause substantial damage to health. What evidence exists to support or contradict the idea that excess ...
23
votes
4answers
6k views

Can we end poverty for $US175 billion per year?

A recent question brought up the claim that poverty can be eliminated for 175 billion a year. I found this claim To end extreme poverty worldwide in 20 years, Sachs calculated that the total ...
23
votes
1answer
3k views

Does using a laptop on your lap lower your sperm count?

It is sometimes claimed that using a laptop on or in proximity of testicles can result in a lower sperm count. This Health.com article claims: Can a laptop computer really affect a man’s ability to ...
19
votes
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 ...
18
votes
1answer
6k views

Does changing your pH balance change your mood?

I have read that eating more alkaline foods and changing your pH balance reduces stress and anxiety. For example, see Eat a Lemon, Feel Less Stressed: Stephanie McClellan, MD, and Beth Hamilton, ...
29
votes
2answers
29k views

Is margarine “one molecule away from plastic”?

I've heard the claim that "Margarine is only one molecule away from being plastic" several times. Usually from friends who think they've heard it from some reliable source. I've also read a couple ...
15
votes
1answer
2k views

Do Compact Fluorescent Lamps (CFL) create dirty electricity which can impact health?

According to this CBC Be Green report: 'CFLs [Compact Fluorescent Lamps] produce what is called "dirty electricity".' In an environment with dirty electricity, diabetics blood sugar will climb. It ...
10
votes
2answers
8k views

Did ancient Indians invent guns, lasers, radars and nuclear weapons?

I found this site which claimed that Ancient India was an extremely advanced civilization whose technology equaled & in some cases even surpassed current technology. None of the claims have ...
34
votes
1answer
4k views

Can swimming after having eaten make you drown?

Some people, including my mom, believe that it's very dangerous to bathe after having eaten without waiting approximately 1 hour (the amount of time depends on what you have eaten). I have two ...
28
votes
1answer
4k views

Are Americans ignorant about the geography of the world?

Jenny Jinx tweeted (244 retweets, 31 favorites) Seriously, the Czech Republic released a statement to correct stupid Americans. I am so ashamed. Good grief. http://bit.ly/11mROu5 The linked ...
28
votes
2answers
4k views

Is there any strong evidence of alien life?

I know that there has been found evidence pointing to simple life on Mars, but has any of the projects like SETI found anything that could point to intelligent alien life out there? By alien life, I ...
13
votes
1answer
6k views

Is the ninth wave the largest?

This famous painting by Ivan Aivazovsky is called The Ninth Wave: Wikipedia tells about the origin of the name: Both English and Russian titles refer to the nautical tradition that waves grow ...
54
votes
2answers
11k views

Is Saudi Arabia funding 200 mosques but not accepting any refugees?

Has Saudi Arabia announced it'll build 200 mosques for those fleeing fighting in Syria and Iraq, but won't accept any refugees? Example claim: "Saudi Arabia Offers to Build 200 Mosques for Syrians in ...
32
votes
1answer
3k views

Organic food is worse for the environment because it requires more land than non-organic food

I've heard that organic crops and husbandry are worse for the environment than non-organic equivalents because in the absence of pesticides and fertilizers much more land is required for an organic ...
20
votes
2answers
15k views

Is drinking hot water more beneficial during hot weather?

I heard from various sources since I was growing up that during hot weather one should drink warm or hot drinks and during cold weather one should rather drink cold drinks, but a quick google found no ...
9
votes
3answers
3k views

Is there no risk-free level of second hand smoke?

The Surgeon General released a report in 2006 regarding the dangers of secondhand smoke (SHS). One of the claims in the report is: There is NO risk-free level of secondhand smoke exposure, with ...
28
votes
2answers
2k views

Does dowsing (aka Water Divining) work?

Also known as water divining, the more general term is dowsing. Practitioners claim to be able to detect minerals and even specific objects. I first became interested in dowsing in my teens, when the ...

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