There is a method and science to strengthening your cardiovascular system (heart & lungs). Taking the stairs instead of the elevator or parking at the end of the parking lot to increase your walking distance is NOT a cardio program, but rather a great example of NEAT (non-exercise activity thermogenesis). Both cardio and NEAT are necessary for results, but only a structured cardio program (that is updated every 4-6 weeks) is going to strengthen your heart and lungs.

A stronger and more efficient cardiovascular system increases stamina and strength, reduces illness and disease, keeps arteries healthy, and keeps excess pounds at bay.