Typical muscle building brain health myth
"Muscle building improves neuroplasticity, Through BDNF!" Very mild release in comparison to cardio, purely for the purpose of movement learning, instead of a sustained elevation. Not surplus.
"It increase testosterone and IGF-1!" Entirely allocated for repairing and growing the muscle fiber. Nearly no excess for brain.
"It improves mood! Well documented!" While tempoary adrenaline and dopamine release can mask undelying issues, The elevated cortisol is well known even among body builders. Which have a very negetive effect to the brain.
Or stupid claims like "It increase bone density which is good to have before you are old". Do these broscience even know how bone mineral density deposits replaces every decade or so? Whilst entirely disregarding the damage and stress to joints and tendons that is irreversible.
Of course, who wants to be healthy, Let's all looksmaxx and pretend it's not mostly for the sake of self esteem and pleasure reward.