Blood types | Human anatomy and physiology | Health & Medicine | Khan Academy

Blood Types Physiology (ABO and Rh Blood Groups)

What's a normal blood pressure range?

Ways to lower your blood pressure at home.

A huge queue is growing outside Lifeblood Town Hall as Sydneysiders donate blood in the wake of the Bondi Beach terror attack. O-negative and O-positive blood types are particularly low, with anyone able to give blood urged to book an appointment by calling 13 14 95 or using the Lifeblood app. #bondi #bondibeach #bondishooting #sydney #lifeblood If you need help in a crisis, call Lifeline on 13 11 14. For further information about depression contact beyondblue on 1300 224 636 or talk to your GP,