Is a Youth Obsession at the Heart of Demi Moore's Breakdown? (PHOTO)

Actresses Rumor Willis and Demi Moore arrive at the Cinema For Peace event benefitting J/P Haitian Relief Organization held at Montage Hotel at Montage Beverly Hills on January 14, 2012 in Beverly Hills, California.

Does Demi Moore have an unhealthy obsession with youth? That's the latest hypothesis posited by multiple anonymous sources who have been talking to gossip writers this week.

Rival magazines Us and the (usually more reliable) People both hit the newsstands Wednesday with cover stories on the insecurities that fueled Demi's breakdown. According to one source talking to People, Demi "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."

The most disconcerting symptom of this preoccupation with age? Demi allegedly began pursuing 24-year-old heartthrob Zac Efron following her split from Ashton Kutcher. According to the Us source, she "tracked down" Zac at a party in the Venice neighborhood of LA, where she "seemed out of her mind." It's an undignified image for a 49-year-old actress.

While Team Demi has been tight-lipped on her hospitalization (besides to say she's seeking treatment for "stress" and "exhaustion"), the 911 call that made its way to the public last week shed more light on the situation. In that call, Rumer (referred to as Rue in the recording) and several other people presumably close to Demi, passed the phone around to each other while requesting an ambulance for the "semiconscious" star.

Rumer WIllis had to duck into a party after the SAG Awards to dodge the photographers who have been following her since mom Demi's hospitalization. 

The released 911 call also revealed Demi had "smoked something. It's not marijuana, but it's similar to incense."

Further Demi-related rumors claimed the actress had developed a habit of drinking the energy drink Red Bull on an empty stomach. People's source claims she was also overly worried about her weight.

"As Demi got older, she convinced herself that she needed to stay young and skinny to remain attractive to her husband. She needed reassurance all the time that she was hot and sexy."