Health & medicine

  • Exoskeletons – wearable devices used by workers on assembly lines or in warehouses to alleviate stress on their lower backs – may compete with valuable resources in the brain while people work, canceling out the physical benefits of wearing them, a new study suggests.
  • Researchers have constructed a portable, thumb-sized device that diagnoses bad breath by quickly 'sniffing' exhalations for the gas that makes it stinky — hydrogen sulfide.
  • An international team of researchers is combining soft scalp electronics and virtual reality in a brain-interface system.
  • When it comes to craft beer, the flavor doesn't have to be all in the hops. As a panel of amateur beer tasters at Washington State University recently demonstrated, malted barley, the number one ingredient in beer besides water, can have a range of desirable flavors too.
  • New research shows how control over self-propelled microswimmers could be achieved using exotic materials named 'nematic liquid crystals' – whose viscosity and elasticity can vary depending on the direction of an applied force.