Of course, I'm mainly referring to the physical aspect, but I also have some mental aspects. I'll try to explain it simply.
You stop taking Trenbolone and immediately switch to NPP. This will help maintain the muscle mass and density that Trenbolone gave us. Of course, at this point, trenbolone metabolites are still circulating in the blood, but after a month of stopping Trenbolone, you should notice that a lot of the physique Trenbolone gave us remains. If I had to put numbers on it, I'd say 60%-70%. Sleep also improves, and all of this makes for a huge motivation to train. I haven't trained as hard and well as I did when switching to NPP after Trenbolone. This also has an indirect effect on my mental health.
This is, of course, just my opinion, but a former bodybuilder gave me this advice: NPP is best when stopping Trenbolone. Maybe because both are 19Nor. Deca too, but it's more likely to "dilute" our appearance. Many people say NPP gives a drier appearance. Apparently, it's a rather unique steroid? So if someone is afraid to stop taking Trenbolone for fear of losing their appearance, it's worth a try.