The photograph was genuine and showed a so-called "ghost heart" — that is, what scientists call hearts without cells used for research. But the image did not show a human heart, as the above post on X ...

Researchers have developed a method for cheaply producing heart valves in the span of minutes that are functional immediately after being implanted into sheep. The scientists call their method ...

A sudden restriction of blood flow to the brain. That's how scientists have traditionally explained why people faint. But several mysteries remain: What causes someone's blood flow to spontaneously ...

An international research team has uncovered a new insight into human evolution by comparing humans' hearts with those of other great apes. An international research team from Swansea University and ...