Vaping changes blood vessels after one use, even without nicotine

E-cigarettes may be safer than traditional cigarettes, but they come with their own risks.


John Keeble
/GETTY
  • A new study used an MRI machine to examine how vaping e-cigarettes affects users' cardiovascular systems immediately after inhalation.
  • The results showed that vaping causes impaired circulation, stiffer arteries and less oxygen in their blood.
  • The new study adds to a growing body of research showing that e-cigarettes – while likely safer than traditional cigarettes – are far from harmless.
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New vaccine (for cats) nixes allergic reactions for humans

You want one. Now you may be able to survive one.


Photo credit: Jie Zhao
/ Getty contributor
  • Cats live in a quarter of Western households.
  • Allergies to them are common and can be dangerous.
  • A new approach targets the primary trouble-causing allergen.
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Technology surrounding the human embryo has moved out of the realm of science fiction and into the reality of difficult decisions. Clinical embryologists fertilize human eggs for the purpose of helping couples conceive.

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Study finds the metronome running rodent brains

A steady timing reference is required by one of the leading theories of neuronal communication.

Image source: Lightspring/Maquiladora/Shutterstock/Big Think
  • A study of mouse neurons may have found a long-sought timing mechanism.
  • If the finding carries over into humans, it may help explain the language of neurons.
  • Each area of the brain may have its own metronome neurons, quietly ticking away.
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What we know about the dangers of e-cigarettes

Compared to traditional cigarettes, e-cigarettes are extremely understudied. There is, however, some evidence on their negative effects on your health.

  • Traditional cigarettes have the benefit of decades' worth of research on their harmful effects. E-cigarettes are relatively new, and our understanding of their long-term effects is limited.
  • To fill this gap, researchers are conducting studies to identify exactly how e-cigarettes effect our bodies.
  • To date, it appears that e-cigarettes are better for you than traditional cigarettes, but that doesn't make them harmless.
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