Mother loses 165 lbs (half her weight!) after startling wake-up call from doctor

People's "Half Their Size" issue never ceases to inspire -- and this year's was no different. 

One amazing success story came from Chasity, a mother living in New Jersey who’s lost 165 pounds.

Wow!

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And we were lucky enough to learn more about her 7-year-long journey when PeopleNow host Jeremy Parsons and Chasity herself visited our show! 

"In my 20s, I began struggling with weight," Chasity explains. "I got busy with my family life and career, and I basically stopped bothering to take care of myself.

At her heaviest, Chasity says, she was nearing 400 pounds. But her turning point came when she had complications following the birth of her third daughter.

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Shocking celebrity weight-loss transformations
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Shocking celebrity weight-loss transformations

Mama June in 2017

The "Honey Boo Boo" star documented her weight loss journey on her very own reality show! She is now down to a size 4 -- and she looks incredible!

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Mama June in 2013

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Khloe Kardashian in 2012

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Khloe Kardashian in 2016

Hard work does pay off! The youngest Kardashian sister is obsessed with exercising and documents all her workout sessions on social media.

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Lena Dunham in 2015

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Lena Dunham in 2017

The "Girls" star lost a significant amount of weight after going on a holistic diet to help alleviate symptoms of endometriosis. 

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Wendy Williams in 2012

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Wendy Williams in 2017

The TV personality revealed in 2015 that she lost 50 pounds over the course of three years with a healthy diet that doesn't include refined sugars, meat, dairy or "eating after dark." It looks like she's been committed to the strict diet. She looks better than ever in 2017!

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Ricki Lake in 2010

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Ricki Lake in 2011

The actress lost 20 pounds when she appeared on "Dancing With the Stars" in 2011.

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Jordin Sparks in 2008

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Jordin Sparks in 2017

Hard work pays off! "American Idol" alum began her weight loss journey by walking around her neighborhood and the rest was history! Her favorite workout? Zumba.

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Sara Rue in 2003

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Sara Rue in 2016

The "Rules of Engagement" star is a total fan of Jenny Craig for its simplicity. She looks incredible and totally glowing!

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Jonah Hill in 2014

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Jonah Hill in 2017

Talk about a transformation! Hill has lost weight and gained weight through the years -- depending on the movie he's working on -- but his latest transformation is absolutely jaw-dropping.

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Christina Aguilera in 2012

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Christina Aguilera in 2013

Smoke show! The songstress dropped 20 pounds over the course of one year. Doesn't she look incredible?!

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Miranda Lambert in 2012

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Miranda Lambert in 2013

The country crooner slammed critics who accused her of having weight loss surgery. She revealed that she dropped the pounds the old-fashioned way -- eating right and working out with her trainer!

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RELATED: Mom of TWO Sets of Twins Gets a Makeover -- And HER Mom Is Brought to Tears By It

"The doctors found that I had a 50 percent clogged artery," Chasity recalls. "I had to make a decision about life and if I wanted to be around to see my children." In that moment, her doctor suggested that she have weight loss surgery, and she decided that the gastric sleeve operation was the safest route for her.

But she didn’t stop there. 

"The sleeve was the immediate fix," the determined mom explains. "But it wasn’t the long-term fix."

So Chasity not only began changing how she eats, but she also started working out Every. Single. Day.

RELATED: 415-Lb Man Realized He Needed to Make Change When He Got Winded Walking DOWN 2 Flights of Stairs

And it’s through a program called GirlTrek -- which is a movement that encourages African American women to walk 30 minutes a day in your neighborhood -- that Chasity even met new friends.

We love that!

"Life is wonderful now," Chasity says. 

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