what are the long term benefits of increased cardiorespiratory fitness?

Science and technology have transformed our lives, but made us more inactive as a result. What are the long term benefits of increased cardiorespiratory fitness? Flexibility? Strength and endurance? Reduced body fat? Which of these key components of physical fitness do you currently possess? Which ones would you like to improve or develop?

How do I train and participate in a fitness competition?

I am looking to train and get my body in shape to be apart of a fitness competition. I want to lose more body fat and compete in pageants and stuff like that. How does one get into something like that.