Demi Moore plot thickens: Pursuing Zac Efron, fountain of youth? Demi Moore isn't having the best week, as far as newsstands are concerned. The actress has reportedly been battling massive insecurity with age and weight, as well as chasing young things like Zac Efron. After her January hospitalization, allegedly thanks to a bad reaction to nitrous oxide and a smoke inhalant, reports are charging the "Margin Call" star with massive insecurities surrounding the breakdown of her marriage - all leading to this current crisis. "She's been really down, and she's surrounding herself with young people to make her feel better," Us magazine cites one source as saying. And by "surrounding" the report suggests Moore "tracked down" 24-year-old actor Zac Efron for companionship. This proposed hunt led to a party in L.A.'s Venice Beach neighborhood, prior to Moore's medical treatment. "As Demi got older, she convinced herself that she needed to stay young and skinny to remain attractive to her husband," People magazine added to the party, via their own inside source. [She] was always fixated on being young. And the only thing that tied her to that, as she got older, was her marriage to a younger guy and hanging around young people. Following the hospital visit, Moore's rep said she would seek "professional assistance to treat her exhaustion and improve her overall health." On the work front, Moore was replaced by Sarah Jessica Parker in the adult film biopic "Lovelace." Demi Moore 911 call: Confusion, convulsions Rumer Willis reportedly witnessed Demi Moore's seizure Demi Moore seeks treatment for 'exhaustion,' 'overall health' Photo: Demi Moore attends the premiere of "Margin Call" in New York on Oct. 17, 2011. Credit: Peter Kramer / AP Photo