The age of the father plays a role in pregnancy outcomes, with harmful genetic changes in sperm being substantially more ...

Genetic changes that create ever-expanding numbers of identical sperm cells are more widespread than previously thought, ...

Researchers have refined a powerful DNA sequencing tool that can uncover hidden mutations that occur naturally in our bodies ...

Unique mutations in the H5N1 strain enhance replication in human cells and cause severe disease in mice. The virus has spread from birds to mammals, including dairy cows, and infected humans, with one ...

A new study has raised alarm bells about the potential for the H5N1 bird flu virus to evolve into a strain sparking a human pandemic. A single mutation in the virus currently ravaging dairy farms ...

Concern surrounding the highly pathogenic avian influenza H5N1 influenza virus currently circulating in dairy cows in the United States is growing. A total of 58 human cases have been reported as of ...

By profiling brains from healthy people aged one to 104, researchers found that mutations accumulate in some genes more than ...

Joe Edwards is a Live News Reporter based in Newsweek's London Bureau. He covers topics related to weather, climate, and extreme weather events. Joe joined Newsweek in April 2024 after graduating from ...

Good morning, and welcome to the Essential California newsletter. I hope you’re enjoying your Saturday. I know my husband is — he’s currently putting holiday outfits on our two dogs, Princess Leia and ...