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This is her fourth guest blog for Healthy SELF:

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Zoe Saldana, 32, doesn’t yo-yo diet – smart move.

Saldana’s trainer told her that eating healthfully and exercising is a lifestyle, not an intermittent habit.

“You really have to nurture your body.

I have a lot of respect for people who do it because it’s a lifestyle.”

Jillian Michaels, age 36, puts health first, looks second.

“To me it’s not about building a better body.

It’s about building a better life,” says “The Biggest Loser” taskmistress.

“And if your health is your platform for life, it’s got to be rock solid.

The result is Ripa is happy and confident, which is, of course, gorgeous.

“Age is going to happen.

Stuff that you love about your body will not stay that way,” she laughs.

And listen, I am grateful.

I have no complaints at all.

I nursed three kids.

I went from a 32-double-A to a 32-double-A-Long.

If you focus on the vanity of it, you’re going to be disappointed.”

“I always take the stairs instead of the escalator.

“When I’m done I feel so good.

I haven’t taken an escalator in years.

I’m not kidding.”

“Sunscreen is my healthiest habit and I think yoga is up there too,” says Hathaway.

Garner, too, calls it a no-brainer.

“I put on like SPF a million.

They have SPF 70 so I’ll use that on my body and then something high on my face.

I mean, why not?

You might as well do everything you could to protect yourself.

Because my dad now has all these little spots that are precancerous from his years on the boat.

It’s no joke!”

Tuning in to her own body makes her feel more at peace and confident, which she projects outward.

“I ask myself, How am I going to eat well today?

How am I going to support myself nutritionally with what I have to do?

“How am I going to keep up my energy?”

What works for her is avoiding sugar and eating all else in moderation.

Clearly, it’s working for her.