Kaley Cuoco says it is "all or nothing" when it comes to her workouts.

Kaley Cuoco

Kaley Cuoco

The 'Big Bang Theory' star loves keeping fit but admits when she gets into the mood to do a particular exercise - such as yoga or going to SoulCycle - she can't get enough of it.

She said: "It's all or nothing. I'm hot or cold. I'm not a gray area. So if I'm doing yoga, we're doing it every day this week. If I get a little bit bored, I'll switch over to SoulCycle, which I love too."

The blonde beauty decided to try horse riding when she was younger and says it "totally changed" her life and improved her mental health.

She told Women's Health Magazine.: "Cut to nine horses later, showing all over the country, having my own barn ... it's totally changed my life, for so many reasons. If you need something good in your life, go take a riding lesson. Riding is all about my mental health at this point. It's my separation from human contact. It's the one place in the world where I cannot be on my phone. You can't be in that mode on your horse; they feel it. You've got to be present. [After] a terrible day, I've been like, 'Okay, I've got to separate.' When you're in tune with your horse, they know exactly what's going on. If you can just be in the moment, you won't believe what you can get out of it."

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