Here’s how it works. The circulatory system consists of three independent systems that work together: the heart (cardiovascular), lungs (pulmonary), and arteries, veins, coronary and portal ...

Your circulatory system works all day, every day, to pump oxygen throughout your body. There are cardiovascular conditions that can impact this system. Your circulatory system, also known as your ...

With age, this falls, roughly in line with the formula ‘220 minus age in years’ so, by the age of 60, it is around 160bpm. It is thought this reduction is primarily due to changes in the heart’s ...