B12 in stacks underrated essential or unnecessary add-on?

During cutting phases with lots of cardio I often feel mentally sharper than during heavy bulking phases

Better cardiovascular health seems to translate directly into better focus and reaction time in my experience

I’ve found that even simple breathing exercises can improve concentration and mental performance for short periods

Low endurance often comes with mental fatigue for me As conditioning improves so does productivity

Sleep fixes almost everything hands down

Better hormones would change everything for me

Sleep is the foundation of a better physique

Hormones are the foundation everything else just follows that baseline

Maximum blood flow forces the nutrients in for real growth

It is sleep because that is your peak anabolic window

Hormones drive everything behind the scenes

Recovery is where the magic actually happens

Better blood flow equals better muscle fullness daily

Hormones would be my first choice honestly

Recovery keeps me growing without feeling wrecked