During a recent red carpet interview at The Big Bang Theory's 200th episode celebration at Vibiana in LA, Kaley opened up about her stunning figure.
Speaking to ET, the blonde beauty revealed she deems daily yoga responsible for her incredible physique.
"Yoga is the secret," Kaley quipped. "Yoga is the reason that I have been [looking great]. It has done everything, mentally and physically. I love it."
Although she has been donning glamorous gowns and glittery playsuits the 30-year-old, who last year split from hubby Ryan Sweeting, actually admitted to feeling her sexiest self when sitting at home, drinking wine after a workout.
"[I'm sexiest] In yoga pants, at home with the dogs, drinking my wine after yoga," she laughed.
"I only go to yoga to drink wine, so I'm good. I just throw the calories right back in," she jokingly added.
Kaley, who was last week seen leaving a Grammys after party with country music star Sam Hunt, also took the opportunity to chat about The Big Bang Theory's incredible run. The hit CBS show is still breaking records since its debut in 2007.
"This is unbelievable," she praised. "To still be number one, it makes no sense. [We have] amazing writers, an amazing cast and crew of people."
"This is a dream come true. You don't ever think you are ever going to get to a point like this, and then when you are here, it is all about gratefulness, so I am thrilled to be here."