Frontiers | Science News

Science News post list

1,488 news posts in Research news

Health

04 Dec 2024

Broken sleep a hallmark sign of living with this common liver disease, scientists find

Researchers from Switzerland have shown that patients with metabolic dysfunction-associated steatotic liver disease (MASLD) suffer poor sleep due to sleep fragmentation and wakefulness. Patients with the more severe form metabolic dysfunction–associated steatohepatitis (MASH) or with cirrhosis, but not healthy volunteers, experienced similar sleep disturbances. Whether poor sleep causes MASLD or vice versa isn’t yet clear. A single sleep hygiene education session proved insufficient to sustainably improve sleep quality and quantity.

Life sciences

25 Nov 2024

Viking colonizers of Iceland and nearby Faroe Islands had very different origins, study finds

Geneticists have studied the distribution of Y-chromosome haplogroups on the Faroe Islands, known to have been colonized by Vikings around the year 900 CE, and compared these to distributions of haplogroups in today’s Scandinavia. They showed with novel analysis methods that the haplotype distribution in the Faroe Islands most closely resembled that in Norway and Denmark, and to a lesser extent that in Sweden, but differed from that in Iceland. They concluded that a band of Viking men from all over Scandinavia colonized the Faroe Islands, which differed in their geographical origin and genetic make-up from those who settled Iceland.