Gut Feeling

Scientists have found that microbes living in the human gut may have more influence over our health than our own genes, perhaps causing psychological and physical changes like obesity.

Scientists have found that microbes living in the human gut may have more influence over our health than our own genes, perhaps causing psychological and physical changes like obesity. "Outnumbering our human cells by about 10 to one, the many minuscule microbes that live in and on our bodies are a big part of crucial everyday functions. The lion's share live in the intestinal tract, where they help fend off bad bacteria and aid in digesting our dinners. But as scientists use genetics to uncover what microbes are actually present and what they're doing in there, they are discovering that the bugs play an even larger role in human health than previously suspected—and perhaps at times exerting more influence than human genes themselves. One team of researchers recently completed a catalogue of some 3.3 million human gut microbe genes. Their work, led by Junjie Qin of BGI–Shenzhen (formerly the Beijing Genomics Institute) and published in the March 4 edition of Nature, adds to the expanding—but nowhere near complete—census of species that reside in the intestinal tract. Another group turned its attention to a particular host gene that seems to impact these inhabitants of the intestines. They found that in mice, a loss of one key gene led to a shift in microbiota communities and an increase in insulin resistance, obesity and other symptoms of metabolic syndrome (a cluster of these conditions). Their results were published online March 4 in Science."

Why a federal judge ordered White House to restore Jim Acosta's press badge

A federal judge ruled that the Trump administration likely violated the reporter's Fifth Amendment rights when it stripped his press credentials earlier this month.

WASHINGTON, DC - NOVEMBER 16: CNN chief White House correspondent Jim Acosta (R) returns to the White House with CNN Washington bureau chief Sam Feist after Federal judge Timothy J. Kelly ordered the White House to reinstate his press pass November 16, 2018 in Washington, DC. CNN has filed a lawsuit against the White House after Acosta's press pass was revoked after a dispute involving a news conference last week. (Photo by Alex Wong/Getty Images)
Politics & Current Affairs
  • Acosta will be allowed to return to the White House on Friday.
  • The judge described the ruling as narrow, and didn't rule one way or the other on violations of the First Amendment.
  • The case is still open, and the administration may choose to appeal the ruling.
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How to split the USA into two countries: Red and Blue

Progressive America would be half as big, but twice as populated as its conservative twin.

Image: Dicken Schrader
Strange Maps
  • America's two political tribes have consolidated into 'red' and 'blue' nations, with seemingly irreconcilable differences.
  • Perhaps the best way to stop the infighting is to go for a divorce and give the two nations a country each
  • Based on the UN's partition plan for Israel/Palestine, this proposal provides territorial contiguity and sea access to both 'red' and 'blue' America
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Water may be an inevitable result of the process that forms rocky planets

New research identifies an unexpected source for some of earth's water.

Surprising Science
  • A lot of Earth's water is asteroidal in origin, but some of it may come from dissolved solar nebula gas.
  • Our planet hides majority of its water inside: two oceans in the mantle and 4–5 in the core.
  • New reason to suspect that water is abundant throughout the universe.
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