Holden is always down for everything that he does and this next reason has a chunk of reasoning on how he is in deep depression.
Another symptom that Holden has is that has no interest in anything he does or what anyone else does
One thing that can make this true is when there was a huge football game he didn't go and when he was in school he lost interest in it and stopped caring and failed his classes. Finally Holden didn't want to go to the very big football game and this is another reason why Holden has a lack of interest because instead of doing something fun he wanted to stay on the hill and be by himself. " I was standing way the hell up there, right next to this crazy cannon" ( Salinger 2).