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 ...

The umbilical cord is your baby’s lifeline in the womb, as it provides oxygen and all the vital nutrients through a blood ...

Red blood cells carry oxygen from the lungs to every other organ, and blood-forming stem cells must make about 200 billion new red blood cells each day to keep the oxygen flowing. For many years, ...

New research reveals that even five minutes of daily exercise can significantly lower blood pressure. A study found that replacing sedentary time with brief, intense activities like running or cycling ...