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 ...

What do a millennia-old human from the Black Sea region and modern HIV medicine have in common? Quite a lot, it turns out, according to new research from the University of Copenhagen. 18-25 percent of ...

Identifying and classifying gene mutations - which are the permanent changes in a person's DNA genetic code - are critical in better understanding, and with research, eventually treating or preventing ...

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 ...

Cats are arguably perfect. At least, evidence suggests that felines, which have evolved with minimal variation and maximal efficiency, have reached the “perfect” genetic form. “Everything you need to ...