Black cats have fascinated the world for centuries as witches' companions and protectors and symbols of both good and bad luck ...

Researchers at Memorial Sloan Kettering Cancer Center (MSK) have developed some of the first robust laboratory models of a ...

A global study of over 1,100 species reveals an evolutionary reason why females consistently live longer than males.

New study explains the gender gap in Alzheimer's rates, with scientists identifying chromosomal differences and hormonal ...

In many bird species, it’s the males who live longer. The researchers found support for this idea: in 72% of mammal species, females outlived males by about 12%. Meanwhile, in 68% of bird species, ...

Women live longer than men. At least, that is what World Health Organization (WHO) data show. Globally, women live an average ...

Autoimmune diseases are on the rise in the U.S., with as many as 50 million Americans affected. Learn what causes them—and which symptoms could help pinpoint your problem.

She had to fight for recognition after a male colleague took credit for her work in identifying an extra chromosome as the ...

A gene on the X chromosome revs up inflammation in the female brain, which may explain why rates of multiple sclerosis are ...

Genes linked to childhood intelligence also predict parents living longer. Study of 400,000 people reveals biology connecting ...

At 31, Seamus was told he was born with an extra X chromosome, which meant he had 47, XXY or Klinefelter syndrome. The ...

Cats with perfectly split-colored faces almost look like nature got creative on purpose. One side is dark, the other light—so ...