Human evolution has often been depicted as a process of adaptation, where natural selection and genetic changes drive species ...

Myriad studies over the years have shown that spending time with a cat can both lower cortisol, the stress hormone, in their owners and spike oxytocin, aka "the love hormone," and that's the same ...

A meeting of advisers chosen by US Health and Human Services Secretary Robert F. Kennedy Jr. to guide US Centers for Disease Control and Prevention vaccine recommendations ended abruptly Thursday with ...