Hula hooping isn’t just funny and fun; it engages your abs for beautiful belly toning. Marisa Tomei even credits hooping with getting her in shape for her role as a stripper in the movie The Wrestler. In one study, vigorous hooping with a weighted hoop raised testers’ heart rates enough to scorch 110 calories in 10 minutes—as much as running a mile.

Hint: Use a full-sized hoop. Using a kid’s hoop will make it much harder. For even better results, you can buy a weighted hoop (which is actually easier to keep up—from eBay (just do a search for “weighted hoop”). Shift your weight back and forth to keep the hoop moving.

Tip: If you get tired of hula-hooping the regular way, try “skipping” with your hula hoop (this works better with a smaller hoop). Place the hoop on the ground with one foot inside and one foot outside. Swing the hoop around with the inside foot and jump over it as it comes around with the outside foot. Practice makes perfect!