Eggs are again linked to heart problems — though the study has problems

Though eggs are back on the menu, some are trying to rewrite the script.

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  • A new study at Northwestern University found a link between egg consumption and cardiovascular disease and all-cause mortality.
  • The research relied on self-reporting at the beginning of observation, with no follow-up reporting.
  • Correlation is likely, not causation, as larger studies have found the opposite to be true.
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What makes someone gay? Science is trying to get it straight.

Evolutionarily speaking, being gay is still something of an enigma

  • Heterosexual people have been less interesting to scientists than gay people, in terms of where they come from, because, evolutionarily speaking, being gay doesn't lead to a higher "higher reproductive fitness" — meaning, it doesn't lead to more babies.
  • Across cultures, gay boys tend to be more interested in spending time with their mothers.
  • We still don't really know why gay people are attracted to each other.

Schizophrenia's surprising link to the gut

What's in your tummy might affect what's in your head.

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  • For decades, researchers have tried in vain to answer the question: What causes schizophrenia?
  • At the same time, we've developed a growing understanding of how intimately linked the bacteria in our gut and our brains are.
  • New research shows that schizophrenics have vastly different microbiomes, potentially uncovering a cause of — and maybe a future cure to — schizophrenia.
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Famous fossil is not an Archaeopteryx feather after all

Lasers solve the mystery of the missing quill.

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  • The famous fossilized feather found in the 1860s is from some unknown animal.
  • The fossil's missing quill has long kept its identity unknown.
  • We're just at the beginning of our awareness of feathered dinosaurs.
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Quit kissing adorable hedgehogs, says the CDC

Omigod, they're cute, but there's peril in smooches and snuggles.

(Flickr user Bea)
  • The CDC has identified an outbreak of salmonella caused by contact with hedgehogs.
  • A hedgehog can appear healthy and still carry salmonella.
  • Conscientious hygiene is required for anyone living with a hedgie.
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