Cardiorespiratory endurance is often considered the key component f health-related physical fitness

Cardiorespiratory endurance is often considered the key component f health-related physical fitness. Why is this the case? How can cardiorespiratory endurance be measured and how can it be improved? What activities, if any, do you participate in that are geared toward improving cardiorespiratory endurance? How does this kind of physical activity/exercise make you feel? Offer some suggestions for maintaining motivation to engage in activities that improve cardiorespiratory endurance.