response: Yes, the modern definition talks of a machine or person's ability to do a specific thing, it can also be a holistic definition about a person's adaptability with varying situations.
original_response: Usually 4 days a week. The modern definition of fitness is labeled as the abiltiy is a human or machines specific function or holistic of adaptability to cope with various incidents or situations.
history: Hey do you go to the gym? I do not, did you know that "fitness" meant being able to do the day's stuff without being excessively tired? This was before the Industrial Revolution. That's interesting! What does it mean nowadays? Not sure about if being now but the definition is the state or quality of being fit. Oh okay, I heard there was a more modern definition, that one just seems a bit general.
knowledge: Modern definition of fitness describe either a person or machine's ability to perform a specific function or a holistic definition of human adaptability to cope with various situations.