What term describes the ability to easily carry out daily tasks while having enough reserve energy?

The term that best describes the ability to easily carry out daily tasks while having enough reserve energy is physical fitness. This concept encompasses various components, including endurance, flexibility, strength, and body composition, all of which contribute to an individual's overall capacity to perform daily activities efficiently and effectively.

When someone is physically fit, they have developed a foundation of endurance that allows them to sustain physical activities without excessive fatigue. Additionally, physical fitness implies that there is a healthy balance of strength and flexibility, which further supports the ability to engage in a variety of tasks without depleting energy reserves quickly. This means that a physically fit person can not only perform everyday activities but can also enjoy leisure pursuits and have the stamina left over to manage life's demands.

In contrast, endurance specifically refers to the ability to sustain prolonged physical activity, while flexibility relates to the range of motion in joints. Strength focuses on the maximum amount of force that muscles can exert. While all these aspects contribute to physical fitness, they do not fully encapsulate the broader concept of having enough reserve energy to maintain daily tasks easily.