Not sure if its the app or biochemical

I'm feeling better today than I have been.  The situation at work really hasn't changed much.  I have been working the app pretty religiously over the past couple of days, which I know has helped.  As I've stated in previous posts, I have been reviewing my experiences and some entries in the morning, at lunchtime, and in the evening.  However, I've also been sleeping better because the heat wave has waned and sometimes I just get in a funk that simply fades away.  Thus, I can't be sure it is the app that's helping me feel better, but I'm sure it had something to do with my improvement.