Introduction Cardiovascular endurance is a foundational pillar of physical fitness. It refers to the ability of your heart, lungs, and blood vessels to supply oxygen-rich blood to working muscles during sustained physical activity. This capacity determines how long and how […]
The cardiorespiratory system—also called the cardiovascular–respiratory system—is the body’s life-support network. It delivers oxygen and nutrients to every cell, carries away waste products, and helps regulate body temperature and pH balance. By coupling the pumping action of the heart with […]
HIIT? A training method alternating between intense bursts of activity and fixed periods of less-intense activity or rest. vs. Steady-State Cardio: Which is Better? When it comes to cardio, the fitness world is divided into two camps—High-Intensity Interval Training (HIIT) […]
Cardio is often one of the first things people think of when it comes to getting fit. Running, swimming, cycling, and even brisk walking fall under cardiovascular exercise. But why is cardio so important? The answer lies in how it […]