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Can what you eat stave off cognitive decline? Sara N. Burke, a University of Florida neuroscientist who studies the effects of diet on cognition later in life, notes that scientists have long known diets high in fat and sugar may cause detrimental changes to the brain. But establishing a firm link between brain health and ultra-processed foods, such as frozen meals and fast foods, is complex, she writes. Burke walks through the many factors at play and explains the state of research on ultra-processed foods and cognitive problems.
But what exactly fits the definition of ultra-processed food? You can find out here.
Luiz Inácio Lula da Silva’s earlier stint as Brazil’s president coincided with a huge economic boom. His country, by many measures, fared far worse under its next three leaders. Lula is back in office for an unprecedented third term, having campaigned on his record. But it will be hard for him to turn things around again, argue Marc-Andreas Muendler and Carlos Góes.
And you can read about what international law says about Israel’s destruction of the homes of Palestinians accused of being assailants.
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Sara N. Burke, University of Florida
Researchers are trying to understand whether ultra-processed foods erode brain health in the aging process.
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Sarah Dickie, Deakin University; Julie Woods, Deakin University; Mark Lawrence, Deakin University; Priscila Machado, Deakin University
‘Ultra-processed’ is not just another term for junk food. It has been shown to be bad for the body and the planet – and it can be tricky to identify.
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Marc-Andreas Muendler, University of California, San Diego; Carlos Góes, University of California, San Diego
He faces strong headwinds at home and abroad as his third term as president gets underway.
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Robert Goldman, American University
A decision to bulldoze the home belonging to the family of a man accused of killing seven people outside a synagogue in East Jerusalem has sparked questions over the legality of Israeli policy.
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Shichun Huang, University of Tennessee
Starting at the surface, you would have to dig nearly 2,000 miles before reaching the Earth’s core. No one could survive that trip – and the 10,000-degree F heat once there would vaporize you anyway.
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Michael Humphries, Touro University
The mere threat of a default was enough to see the US’s credit rating downgraded in 2021. The consequences of a default actually happening could be dire, an economist warns.
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Bernard Lohr, University of Maryland, Baltimore County
From insects to birds to bats to frogs, these little loudmouths have found ingenious ways to deliver their messages at high volume.
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Gissel Marquez Alcaraz, Arizona State University; Athena Aktipis, Arizona State University
Cancer cells are ‘cheaters’ that do not cooperate with the rest of the body. Certain microbes in your diet can either protect against or promote tumor formation by influencing cell cooperation.
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Howard Manly, The Conversation
The death of a Black motorist after a beating by five Black Memphis police officers has triggered national outrage over police brutality and systemic racism with the U.S. criminal justice system.
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Sanya Osha, University of Cape Town
Kidjo has a remarkable cultural vision that spans the globe but stays true to her roots.
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