Not long ago, the gym felt like it had two distinct tribes: the lifters and the cardio crowd—each sticking firmly to their side of the turf. But fast-forward to 2025, and fitness has evolved. Now, it’s more common to see people bouncing between barbells and treadmills, blending heavy lifts with high-intensity intervals and strength work with sweat sessions.
As this new wave of hybrid training takes over, an old debate resurfaces: Does cardio kill gains?
For so long, cardio was treated like the enemy of muscle growth–as if stepping onto a treadmill or attending a single cycling class could undo months of hard-earned progress. The fear that your gains would vanish the moment you dared to break a sweat without a barbell in hand.
But does the myth still stand? Or have hybrid athletes proven the myth wrong and finally put it to bed?
It’s time to settle the debate once and for all: Does cardio kill gains, or have we been avoiding the treadmill for no good reason?
I’m saving this thread for my next cutting cycle. Great breakdown.
The ‘interference effect’ is so overblown. Cardio is mandatory for heart health.
Weighted vest walking is the most underrated fat loss tool in existence.
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