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Life Science Zurich Communication & Events

Increased deep sleep benefits your heart

Stimulating the brain with gentle sounds during deep sleep significantly enhances cardiac function, according to a new study. This discovery could have implications not only for cardiovascular diseases but also for competitive sports, among other areas.

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A subject is wearing the deep sleep stimulation system. (Photograph: Stephanie Huwiler & Silvia Hofer / ETH Zurich)

In brief

  • Researchers at ETH Zurich and the University Hospital Zurich play ultra-​brief tones to stimulate the brain during deep sleep.
  • This stimulation improves cardiac output and relaxation of the left ventricle.
  • Such technology to improve cardiovascular function could be relevant both in disease treatment and competitive sports.

ETH News