Teri Hatcher has a new outlook on life.
The Desperate Housewives alum, who celebrated her 55th birthday last week, opened up about her fitness philosophy in an Instagram post Tuesday, sharing a photo of her posing in a brown bikini.
Speaking about her F45 workouts, which combines cardio with resistance training, Hatcher wrote in the captions, "Exercise has become a source of well being not a means to look good naked."
"So why actually post a pic of myself in a bikini? Well, this is my truth and being in this 55 year old body actually feels liberating," she shared. "Here's the thing. I've finally figured out how to be comfortable in my own skin. Maybe not every day but a lot of them."
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"Age allows you to be clear on your purpose and cherish who and what you are grateful for," she continued. "You have enough age to see the miracle of life and enough youth to revel in that knowledge. You can be vulnerable and strong at the same time. You can forgive others and yourself. You are willing to put in the effort to reach a goal…or not. And that's okay."
For Hatcher, being comfortable with herself is "to make the most of every moment," she wrote.
"For me that is sharing joy & positivity, knowledge I've gained through experience both successes and failures, and helping to lift others up," she shared.
The actress also explained why she chose to share a bikini photo to document her F45 training.
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"Sharing myself in a bikini (which I may or may not ever wear again) Is me Being open to others, open to life… finding glorious connection and community," she penned in the note. "No filters, no makeup, no airbrushing, no negativity. Be strong enough to be vulnerable."
In 2018, Hatcher ran the New York City Marathon along with her daughter, Emerson Tenney, on behalf of the Save the Children charity. Before the race, she told PEOPLE the experience would "really different" given that she had ran her very first marathon completely by herself.
"We have a really close great relationship, but I think that she would say, and I agree with this, that this is different than just going on a trip or spending time together," Hatcher said of participating in the race with her daughter.
"Something about the ups and downs of training for such a physical feat as a marathon - that sort of vulnerability, the adversity that you have to get through and pushing through walls together - and having that experience as a team; it's just a bonding thing that you can't really replace or have from any other experience. And I think we both wanted that together."