It takes a lot of hard work to stay in shape, which is why it’s important to exercise on a regular basis. But it’s not always possible to remain active, and sometimes a few days off can turn into a more... extended hiatus. Here’s what happens to your body when you suddenly stop exercising
Answer: The Sevenths mans view changes as time goes on many times in the story. At first he beileved that K had smiled at him in between the first and second wave. Then he starts remembering it a little less and doesn't look down on it as hard when he moves away.
It looks like 2) "it" would need to be changed.
I'm not sure if you meant baking or biking but if you meant biking then it basically means it's unsafe and one you get in an accident your brain would uh fall out so yea.