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“The Green Mile” star and Academy Award-nominated Michael Clarke Duncan (pictured) is in the intensive care unit (ICU), after going in to cardiac arrest Friday morning, and his girlfriend, reality show villainess Omarosa Stallworth (pictured below), actually saved his life, according to TMZ.

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Stallworth reportedly discovered that Duncan was unconscious and barely breathing at around 2:00 a.m. Acting quickly, Stallworth reportedly began to perform emergency CPR, which resuscitated him.

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Sudden cardiac arrest occurs when blood flow to a portion of the heart is blocked.  The situation is a medical emergency and if not treated immediately, a person can die. CPR or rapid compressions to the chest can improve survival until emergency medical technician workers (EMT) arrive to take over.

The 54-year-old Duncan, who is 6’5″and more than 315 pounds, was transported to the ICU of a nearby hospital, and according to sources who spoke to TMZ, his heart is stable. In addition, Omarosa, his girlfriend of two years, has not left his side throughout the entire episode.

Doctors are now working to find out why Duncan’s heart failed in the first place.

In 2009, Duncan stopped eating meat, became a staunch vegetarian, and began touting the benefits of living a healthy lifestyle.

Watch Duncan talk about being a vegetarian here:

The larger-than-life actor is best known for his “Green Mile” role as the gentle giant “John Coffery.” He also tickled America’s funnybone as “Franklin ‘Frankie Figs’ Figueroa” in the adventure crime comedy film “The Whole Nine Yards,” which earned him a Blockbuster Entertainment Award for Favorite Supporting Actor.

Watch the trailer of “The Green Mile” here: