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Editor's note
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Consuming too much salt raises a person’s blood pressure, which increases the risk of heart disease and stroke. For this reason, the World Health Organisation recommends that adults limit their salt intake to 5g a day. However, this advice is being ignored on a massive scale. Average salt intake for adults is now 10g a day, globally.
Much to the frustration of public health officials, a recent large study suggested that not getting enough salt is also bad for your health. Global health researcher Feng He has issues with that study, though, pointing to serious methodological flaws. Her own study, using the gold standard for measuring salt intake, suggests that the link between salt intake and cardiovascular disease is purely linear – the more you consume, the higher your risk. In fact, her study suggests that the new threshold for salt intake should be 3g a day.
Left-handedness is also associated with poor health and early death, but this, thankfully, is a myth. Elsewhere, we take a look at second-wave feminist Shulamith Firestone and her legacy. Her views on the exploitation of women’s reproductive rights are as relevant today as they were when she first espoused them in the 1970s.
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Clint Witchalls
Health + Medicine Editor
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Top story
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Jiri Hera/Shutterstock
Feng He, Queen Mary University of London
Recommended salt intake levels should be lowered further, despite previous contradictory research.
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Wachiwit/Shutterstock
Emma Karlsson, Bangor University
10% of people are left-handed but we still haven't uncovered how this changes the way their brains work.
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Shulamith Firestone interviewed in 1969.
Still from Hezayka News report via babyradfem_tv on YouTube
Victoria Margree, University of Brighton
Second-wave feminist Shulamith Firestone was mocked when she published a 1970 manifesto advocating artifical wombs, but her arguments about the exploitation of reproductive labour remain timely.
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Health + Medicine
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Josephine Ross, University of Dundee
In dementia sufferers, if autobiographical self-knowledge is lost, feelings of agency – learned as an child – may be the last remaining facet of self, something most studies have ignored.
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Ann John, Swansea University; Sophie Wood, Cardiff University
Data from England has found no link between increased social media use and a rise in diagnosed eating disorders.
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Politics + Society
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Matthew Cole, University of Birmingham
Presenting himself as a man of the people is a major gamble for this prime minister.
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Arie Perliger, University of Massachusetts Lowell
Major changes in the language of white supremacists have happened in the last decade that provide a window into how the groups mobilize support, shape political perceptions and advance their cause.
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Science + Technology
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Michael J Porter, University of Central Lancashire
Changes in our environment can reveal previously hidden mutations in our DNA with potentially good and bad consequences.
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Franca Nneka Alaribe, Tshwane University of Technology; Keolebogile Shirley Motaung, Tshwane University of Technology
Tissue engineering and regenerative medicine is based on three key requirements working together: signals from body tissues and organs, responding stem cells, and scaffolds.
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Business + Economy
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Adrian R. Camilleri, University of Technology Sydney
Your trust in online consumer reviews may be misplaced. Check your ability to spot real from fake reviews with our quiz.
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