Causality (also referred to as causation) is the relationship between an event (the cause) and a second event (the effect), where the second event is understood as a consequence of the first.

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Is non-ionizing radiation known to cause any health issues?

Non-ionizing radiation, like radiation from mobile phones, electric power transmission, and radio frequencies, etc. is regarded by the majority of people as safe to the human body. However the World ...
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Can getting in and out of a vehicle at a gas station cause combustion?

The warning signs at gas stations warn that you ought not enter and exit your vehicle while filling up your tank at the gas station. I have also been told by many people that doing so runs a risk of ...
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Has contraception been shown to have caused increases in infidelity and/or divorce?

Related: Natural family planning and divorce rates A friend of mine attended Catholic Mass today and shared that the homily was entirely about contraception. From her summary, the gist was that the ...
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Does wearing red give an advantage in competitive sport?

Inspired by two recent questions about colour ( Is there a relationship between yellow and moods?) and sport ( Is playing sport at your 'home ground' a benefit? ) I thought the following ...
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Seat belts in cars save the lives of occupants in cars, but do they lead to lower deaths for all road users?

Reading and contributing to the skeptics debate about the effects of cycle helmets reminded me of the much more significant debate on seat belts in cars. Most countries seem to have accepted that ...
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Do school uniforms improve student behavior?

Many of the advocates of school uniforms claim that uniforms for students in K-12 reduce behavior problems such as bullying. What evidence exists to support or contradict these claims? For example, ...
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Correlation between ring finger length and sexual preference

Is there any truth to the claim that people who have ring fingers that are longer than their index fingers are attracted to the opposite sex? In other words, in the picture below, the hand on the ...
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Do solar flares increase the probability of an earthquake?

So, with Japan in the news today, weird theories about earthquakes are at the forefront again. The theory that solar flares are correlated with earthquakes came up, so of course I tried to find some ...
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Do violent video games cause violent behavior?

I have been following this question casually over the past couple of years, and it seemed to me that there was no strong consensus either way on the subject. However, I recently read an editorial from ...
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Do mobile phones have anything to do with brain cancer?

Is there evidence for a correlation between the use of mobile phones and the occurence of brain cancer? If yes, is there also evidence for causality?