ABS WORKOUT: If you want strong, sexy abs, you dont have to spend all day on them. Just ask Australian fitness trainer Kayla Itsines, who is known for her Bikini Body Workout Guides, cult following on Instagram, and rock-solid core. To make your torso look like a washboard, Kayla recommends the seven-minute workout found here. Click through for the free abs and core workout that you can do at home or at the gym.

ABS WORKOUT: If you want strong, sexy abs, you dont have to spend all day on them. Just ask Australian fitness trainer Kayla Itsines, who is known for her Bikini Body Workout Guides, cult following on Instagram, and rock-solid core. To make your torso look like a washboard, Kayla recommends the seven-minute workout found here. Click through for the free abs and core workout that you can do at home or at the gym.

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