Not everyone needs 8 hours of sleep to function properly. Some people can feel well-rested and show no negative effects of sleep deprivation, even after just 4 hours of sleep, which is likely the ...

Myelin is a lipid sheath that insulates nerve fibers carrying signals throughout the brain and body. When this sheath becomes damaged, the passage of these crucial signals is disrupted, leading to ...

Modern HIV medicine is based on a common genetic mutation. Now, researchers have traced where and when the mutation arose -- and how it protected our ancestors from ancient diseases. Modern HIV ...

A hidden genetic mutation could predict a man’s likelihood of developing dementia. That’s according to an Australian study led by Monash and Curtin Universities, which analyzed the medical data of ...

Individuals that share the same deletion of a portion of chromosome 16 are at risk of developing neurodevelopmental disorders, but some experience severe intellectual disability or developmental delay ...

How did horses become some of the greatest athletes in the animal kingdom? Researchers at Johns Hopkins Medicine may have found the answer, pinpointing a genetic mutation and evolutionary process that ...