Nobody knows for certain, but the British Psychological Society research blog reported on a study that gets us closer to a few answers.
You may criticize or envy talkers, but according to a recent study, they have a leg up on the rest of us!
But those figures are based on US analysis, itself based on a 1970s study.
Research was carried out in the US on a small study group who complained of sudden "explosive" headaches.
My Moneybox predecessor Annie Lowrey did a great piece a while back reviewing some of the literature on the terrible consequences of long commutes, and now a new study gives us even more.
In 2000, concern about the EMP threat in the US caused Congress to mandate the formation of a commission comprised of the leading US experts on the issue to study it.
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In a Deloitte study of 20, 000 US firms, the rate of return on assets and invested capital declined by 75 percent during the period 1965-2011.
It was not a problem that affected Manuel Aguilar who had moved to the US to study and then went on to work in the financial markets.
"Having these ways to look into the brain gives us a tool that we can then use to study the effects of music on the growth and development of the brain, " says Professor John Iversen of the Institute of Neural Computation at the University of California San Diego.
"Plasmodium is not a simple organism like a bacterium or virus, " says Dr Mohammed Shahabuddin, at the US National Institute of Allergy and Infectious Diseases and a co-author on the study published in the journal Science.
The risk of developing bunions - bony growths on the big toe - is linked to your family, not your shoes, a US study has shown.
The Institute has taught us a lot about adjusting the ratios on the well-known "plan-do-study-act" cycle.
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The study, based on a telephone survey of immigrants, also demonstrates that the majority of those polled find life in the US a great deal more lucrative than the life they left behind.
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