Michał Słupski



Scientists break through the wall of sleep to the untapped world of dreams
  • Neuroscientists achieve the unthinkable - talking to someone who’s asleep, and they’ve already done it with several people.
  • Cross-national research team demonstrated two-way communication with lucid dreamers in the REM (rapid eye movement) sleep phase.
  • Eye movements generate current, which is recorded by electrodes placed around the eyes, and the signals are translated to dialogue.
  • Studying the mind during sleep used to be limited to people telling stories about their dreams after waking up, so this is a big gamechanger.
  • Psychology experiments with sleeping people are now possible, and it could greatly enhance our understanding of consciousness and the mind’s abilities.

Yale scientists repair injured spinal cords using patients’ own stem cells
  • Injecting stem cells into veins of patients with spinal cord injuries led to a big improvement in their motor functions.
  • Half the patients in the study regained some key functions - walking, using hands - just weeks after the injection.
  • The stem cells were taken from the patients themselves.
  • To make this clinical trial possible, Yale and Sapporo university teams had to do years of preclinical laboratory work.
  • These results are promising and give hope, yet study authors say it will still take years before doctors will be able to fix brain and spinal cord injuries this way.

'Night owls' may be twice as likely as morning 'larks' to underperform at work
  • Whether you perform best in the morning or evening depends on your chronotype - ‘larks’ work early, ‘night owls’ work late.
  • Because night owls go to sleep later but have to get up early with everyone else, they incur sleep debt and need catch-up sleep on non-work days, which is bad for health.
  • To explore this, researchers used data from a 1966 Finland birth cohort study, initially consisting of 12,058 children.
  • At age 46, 2672 men and 3159 women from the study were questioned about their chronotypes in 2012, and monitored for 4 years afterwards.
  • Compared to larks, owls had worse ratings for variables related to sleep and health, and were twice more likely to underperform at work.

Gut health and mood genetically entwined
  • World’s largest study (data from almost half a million people) of genes involved in stomach ulcers shows that ulcers are linked to depression.
  • Study author says he got the idea when he noticed that stomach issues often got reduced after people underwent psychotherapy or psychiatry.
  • The study explains why stomach ulcers and depression often go hand-in-hand in patients.
  • Overall, the study could help scientists provide gene-based risk scores to patients in order to prevent stomach ulcers.



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