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I’ve never been able to do it.

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© Condé Nast

I’m like, ‘There’s so much effort going into my leg right now, andnothingis happening!’

Still, my core feels stronger, my posture is better, and I have more energy."

Wet suit, $118;Roxy.com.

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Earrings, $2,375;BlueNile.com.

Necklace, Jennifer Zeuner Jewelry, $198; Bergdorf Goodman.

I’ve never enjoyed Spin classes, where they’re like, ‘Push it further!’

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I’m like, ‘No.

If I pull something, I can’t work tomorrow.’

That’s why I gave up Bikram yoga.

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One day I basically found myself in a split, and I was like, ‘Oh!

I’m so flexible!’

The next day: ‘I can’t move.’

This image may contain Cobie Smulders Human Person Clothing Apparel Fashion Evening Dress Gown Robe and Premiere

So I started doing Yin yoga.

It’s 90 minutes of intense stretching.

You hold each pose for five minutes.

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It’s a stress reliever.

The warrior poses are great for building muscle."

Dress, DKNY, $295; 800-231-0884.

This image may contain Cobie Smulders Human Person Fashion Premiere Clothing and Apparel

Earrings, $2,375;BlueNile.com.

Necklace, Jules Smith, $98;Shopbop.com.

So I took tae kwon do three times a week.

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I wanted to feel like I could hold my own in a roomful of superheroes.

I was so bummed.

At least it will help offscreen if something ever goes down!"

Left: At theCaptain America: The Winter Soldierworld premiere in Hollywood, March 13.

On Fear

“I seek out things that terrify me, like an improv class.

I’m terrified of sharks, but I scuba dive.

I’m not good at auditioning, but I force myself to do it all the time.

Fake it ‘til you make it.

In a moment of panic, think of all the things you’re grateful for.

On Beauty

“I treat myself to a facial every few months.

It’s like getting your car washed.

They get in there and get stuff out.

I’ve also started using a Clarisonic exfoliating brush a couple of times a week.

It’s for my face!'”

On Happiness

“When I was younger, my life was about getting to the next level.

But I’ve learned if you package your happiness with if-only goals, you’ll never really be happy.

There’s always something more you’ll want.

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