Announcer: Welcome exercise rebels and gym-o-phobes! Prepare to enter the SlimDome, an innovative new weight-loss sauna! Are. you. ready?!

Couch Potato: Not really.

Announcer: Today’s epic battle pits far infrared rays against your, well, pits — and the rest of your body. Get ready to work! We’re talkin’ up to three times the volume you’d sweat in a regular sauna.

CP: Wait. But I’m just lying here.

Announcer: Maybe — or maybe you’re shedding 600 calories. Feel that rush? It’s the blood oxygenation, increased circulation, and release of heavy metals and toxins.

CP: Seriously, though, I’ve done nothing for 40 minutes. I just feel a bit oily.

Announcer: That’s because those heat-packing FIR emissions in the bed generate oil-based sweat, the kind of hardcore perspiration associated with marathon-style endurance training.

CP: I knew I could dew it.

Available at Pureskin, 4609 Willow Lane, Chevy Chase (301-907-6662‎ or pureskinbethesda.com).