<em>A</em><em>)</em> Fitness is the ability to endure daily tasks without getting tired too much.
it doesnt matter whether it is trying to catch a bus, running after your energetic child, or simply going from point A through point B to point C.
Keeping your body healthy is balancing your diet, exercising daily, having a healthy sleeping pattern, and managing a stressful event.
it seems hard.. but once it becomes a routine, it's no problem!
If you have good cardio respiratory endurance, then you'll be able to do rigorous physical activity for longer amounts of time, because like other muscles in your body, the more you stretch them the stronger they get and the longer they would last.
Hope that helps and makes sense :)
Un habito saludable puede ser como un parque