Secondary bacterial infections is bad for any body but even worse for elderly because there body can't fight it off because there bodies are wore down the human life cycle is kinda like a car you by it brand new then as it gets older it starts to brake down and ware out then it finally brakes down for good
Answer:
A
Explanation:
This seems like the best answer. Let me break it down for you:
Stamina is the ability to sustain prolonged physical or mental effort.
Regularity and Specificity just refer to how much you do and what you do.
Overload and Progression refers to if your doing too much and at what rate.