Christina Applegate was diagnosed with breast cancer in 2008, and she opted to have a double mastectomy later in the year. Now, she's opening up to ET about how she's coping with life after the procedure, as well as how she's helping other at-risk women.
Christina Applegate opens up about life after double mastectomy
LOS ANGELES, CA - APRIL 05: Actress Christina Applegate (R) and her husband Martyn LeNoble (L) attend the 2nd Light Up The Blues concert an evening of music to benefit Autism Speaks at The Theatre At Ace Hotel on April 5, 2014 in Los Angeles, California. (Photo by Paul Archuleta/FilmMagic)
SANTA MONICA, CA - JANUARY 16: Christina Applegate arrives at the 19th Annual Critics' Choice Movie Awards at Barker Hangar on January 16, 2014 in Santa Monica, California. (Photo by Steve Granitz/WireImage)
James Marsden, left, and Christina Applegate speak on stage at the 19th annual Critics' Choice Movie Awards at the Barker Hangar on Thursday, Jan. 16, 2014, in Santa Monica, Calif. (Photo by Frank Micelotta/Invision/AP)
US actress Christina Applegate arrives on the Burgundy carpet for the UK Premiere of Anchorman 2: The Legend Continues, at a central London cinema, Wednesday, Dec. 11, 2013. (Photo by Joel Ryan/Invision/AP)
Christina Applegate attends the UK premiere of 'Anchorman 2: The Legend Continues' at The Vue West End on Wednesday, Dec. 11, 2013. in London, England. (Photo by Jon Furniss/Invision/AP)
Christina Applegate arrives at the 3rd Annual Celebration of Dance Gala at the Dorothy Chandler Pavilion on Saturday, July 27, 2013 in Los Angeles. (Photo by Todd Williamson/Invision/AP)
Will Ferrell and Christina Applegate film "Anchorman: The Legend Continues" on Saturday, May 18, 2013 in New York. (Photo by Charles Sykes/Invision/AP)
This image released by Paramount Pictures shows Will Ferrell as Ron Burgundy, left, and Christina Applegate as Veronica Corningstone in a scene from "Anchorman 2: The Legend Continues." âThe Hobbit: The Desolation of Smaugâ held off âAnchorman 2â on a busy weekend at the box office. According to studio estimates Sunday, Peter Jacksonâs âHobbitâ sequel took in $31.5 million in its second weekend of release. That topped Will Ferrellâs âAnchormanâ sequel, which nevertheless opened strongly in second place. (AP Photo/Paramount Pictures, Gemma LaMana)
THE TONIGHT SHOW WITH JAY LENO -- Episode 4585 -- Pictured: (l-r) Actress Christina Applegate during an interview with host Jay Leno on December 18, 2013 -- (Photo by: Stacie McChesney/NBC/NBCU Photo Bank via Getty Images)
THE TONIGHT SHOW WITH JAY LENO -- Episode 4585 -- Pictured: (l-r) Actress Christina Applegate and actor Kevin Nealon on December 18, 2013 -- (Photo by: Stacie McChesney/NBC/NBCU Photo Bank via Getty Images)
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"I lost my mind," said Christina, 42, when asked how she reacted to her diagnosis. "I still sometimes lose my mind six years later. You look down and you have a daily reminder of everything that you've gone through."
The double mastectomy saved her life after her breast cancer was detected by an MRI when she was 36 years old. "I started getting mammograms at 30, but my doctor said 'the mammograms are not working for you because you're too dense, and so we're going to do an MRI.' It was with that MRI that I found cancer, years before a mammogram would have."
The former "Married with Children" star finds that as a mother to Sadie Grace, she worries that the foods we eat have something to do with women getting cancer so early on in life. "We have her on a completely plant-based diet," she told ET's Brooke Anderson. "It's because I want her to have the best chance possible."
Today, Christina's foundation Right Action for Women gives free MRIs for high-risk women. "Were into almost 500 now," said Christina. "We've spent over half a million dollars on MRIs, which is really incredible."
Christina admits that the cost of those MRIs has taken its toll, and now she needs to replenish. If you'd like to donate or learn more about her foundation, check out this link.