Agree with you ozelli. A contractor hauling building materials up ladders and doing physical labor is BETTER than going to the gym. It’s a total body workout 5 days a week.
Coloradoboy, you will definitely feel some fatigue, some hot flashes too but it’s not that bad.
You sound like a guy (avid cyclist) who is used to pushing thru physical barriers; your ability to cope with your emotional and family issues also indicates a strong mental core.
So I would definitely go for 6 months of ADT (the least you should do) to help you fight the cancer. Also, as jeffmarc mentioned, the other factors in your biopsy - and a Decipher Test - are VERY important before you do any treatment. Cyberknife is great but it doesn’t always work with cribriform/IDC - even with ADT.
You may need a ‘brachy-boost’ where a powerful radioactive seed is placed in your prostate for an hour or so to really blast the most aggressive cells….
…or surgery, which is effective, sometimes ‘curative’ (we use that term very ironically here!) but a very good first step nonetheless.
Sorry to muck up things since your main question was about ADT, but your low PSA with a 4+3 Gleason score is somewhat atypical and you may need a lot more info before pulling the trigger on treatment. Best,
Phil