Why Cardio After 40 Is Making You Gain Weight

The 9-step fix to drop fat and boost testosterone.

Photo by Natejohnston on Unsplash

Most men over 40 think cardio is the answer.

More running. More spinning. More sweat.

But the harder they push, the softer they get.

Sound familiar?

That’s because after 40, your body doesn’t play by the same rules.

And if you’re still following the old “eat less, move more” playbook…

You’re fighting your biology, not working with it.

What’s going on?

Your testosterone is declining. Cortisol rises more easily. Recovery goes down.

So when you try to “out-cardio” your belly fat, here’s what happens:

• You spike stress hormones
• You burn muscle (not fat)
• You wreck your recovery
• And you stay stuck

That 45-minute run might feel productive…

But it’s driving you further away from the body you want.

Here’s what to do instead.

1. Cut the Excess Cardio