One effective method for decoding the definition of cardio respiratory, or any word, is looking at the root word. Cardio is Greek, and refers to the heart. Respiratory refers to breathing, which involves the lungs. So, cardio respiratory is the action of both the heart and the lungs.
Answer:
The attitude of the main character becomes careless.
Explanation:
As said in the 2nd paragraph, "I don't really care about my surgeries."
Hope this helps Mark Brainliest!