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 ...

Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. A new study may ...

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 ...

A man sits outside and holds a slim menthol cigarette between his fingers. Close-up with focus on the cigarette. The study provided a comprehensive examination of how lifestyle and environmental ...

Mayo Clinic researchers have identified a rare mutation in the MET gene that can directly cause metabolic dysfunction-associated steatotic liver disease. The mutation disrupts the liver’s ability to ...

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 ...

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 ...

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 ...