(I was on hormone therapy for my 4+3=7. By following these recommendations, my ADT side-effects were minimal.)

Regarding minimizing ADT side-effects —>

Here’s a PCRI video discussing this topic: https://m.youtube.com/watch?v=YE61HSAsFb0

Here’s a clinical trial paper with details about the benefits of resistance-training exercise as it relates to ADT side-effects: https://journals.lww.com/acsm-msse/fulltext/2023/04000/resistance_exercise_training_increases_muscle_mass.2.aspx

If he starts exercises before starting ADT, as those experts point out he’ll do better while on ADT.

Good luck!