Add Yahoo as a preferred source to see more of our stories on Google. The body starts plugging up wounds as quickly as it can to prevent blood loss and infection. Jonathan Knowles/Stone via Getty ...

Are you worried about having healthy circulation? There are many signs that can indicate a problem and easy ways to improve it.

This Journal feature begins with a case vignette highlighting a common clinical problem. Evidence supporting various strategies is then presented, followed by a review of formal guidelines, when they ...

Our blood consists of many cell types that develop through different stages from a precursor type -- the blood stem cell. An international research team has now investigated the developmental pathways ...

The veins constitute a reservoir for the blood supply, not merely a system of passive conduits. They constrict and dilate actively, thus maintaining a satisfactory distribution of blood in the body ...