But even if the results are good, the process can still be very draining on the individual.

It really depends on what type of exercise you are doing. I for example really like cycling and can hold speed of around 25 km/h for extended distances. I hate going to the gym though because that actually felt like concentrated suffering to me. You have to do some work to figure out what you can do and like

What? I don’t get how it disproves the graph from the other commenter or anything else

Edit: Oh I thought they were saying the first graph depicts it as worse than it is but it was the other way around which makes much more sense