There's a particular kind of "I can't" that shows up around exercise.

Not the obvious kind. Not "I hate gyms" or "I don't have time" (though both can be completely valid).

It's the kind where you understand that movement would probably help. You genuinely want to do it. You've even bought the workout clothes and created the perfect playlist.

And yet, when it's actually time to move, something in you shuts down. it’s a ‘no’.

Most people interpret this as laziness or lack of willpower. After all, isn't exercise just a matter of discipline? Can't a good motivational quote fix this?

But here's the thing: your reluctance might not be a character flaw. It might be your nervous system doing exactly what it's designed to do… protect you.

If you’ve recently started GLP-1 medication (such as semaglutide or tirzepatide), exercise can suddenly feel confusing.

Some people feel pressure to exercise more to “make the most” of GLP-1 medication for weight loss.
Others feel unexpectedly tired, weak, or flat and stop exercising altogether.
Many people swing between the two.

Neither response means you’re doing anything wrong.

It usually means no one has explained how exercise fits into GLP-1 treatment, especially in the early stages.

This article explains:

• why exercise matters on GLP-1 medication

• why fatigue and weakness are common at the start

• common exercise mistakes on GLP-1 medication

• how movement supports energy and muscle, not just weight loss

This is not a workout plan. It’s an explanation of what’s happening so you can make informed decisions.