By mimicking how blood takes up and releases carbon dioxide, researchers in Japan have developed a technology that traps and releases carbon dioxide using a mere fraction of the energy of ...

The circulatory system consists of one heart, five liters of blood, and approximately 96,000 kilometers of blood vessels, ...

The 88-year-old pope has remained without a fever "at all times," and his gas exchanges -- where oxygen is added to the blood ...

Discover how CO2 training improves oxygen efficiency, mental focus, and endurance for athletes through specialized breathing ...

The blood is oxygenated there and then carried back to the heart. Exchange of oxygen and carbon dioxide happens in the lungs: The systemic circuit transports blood around the rest of the body.