In their first interview since Brittany Murphy’s death last month, the mother and husband of the late actress tell People magazine that they believe she died from a congenital heart murmur, not drugs as has been rumored.

“She had a little bit of a cold,” says Murphy’s mother, Sharon. “You could never in a billion years imagine this happening.” The 32-year-old actress’ mother and husband, Simon Monjack, add that Murphy did not suffer from mental illness, an eating disorder, or a drug habit. “Do you not think anybody would have picked up on this anorexic, mentally deranged person?” asks Monjack. “It’s ludicrous.” Both say that Murphy’s heart condition was diagnosed in her teens and had been monitored regularly. “We had it checked out every which way you could imagine,” says Monjack.

Murphy’s mother adds that her daughter’s “bubbly”  may have sparked the rumors of her drug use. “She never even drank. Maybe a glass of champagne at New Years,” says Sharon. “But everyone used to say she was wasted, she was this, she was that. It was hard for anyone to imagine that somebody was so high on life.”

The issue of People with the entire story will be on sale Jan. 22.

Doctors Without Borders announced today that Sandra Bullock donated $1 million towards the organization’s relief efforts following the devastating earthquake in Haiti. Bullock’s just the latest in a line of stars who’ve been opening their wallets to help. Earlier, model Gisele Bündchen donated $1.5 million to the Red Cross, Angelina Jolie and Brad Pitt gave $1 million to Doctors Without Borders, and Madonna gave $250,000 to Partners in Health, a Haitian health-care provider. George Clooney is set to host a telethon on Jan. 22 and Wyclef Jean, a native of Haiti, continues to raise money for relief.

ER star Noah Wyle and his wife, Tracy, recently separated after 11 years of marriage, People reports. The actor’s rep gave People the following statement: “Tracy Wyle and Noah Wyle, who separated in late October 2009, have confirmed they have entered into a mediation process. Neither has legally filed for divorce. Tracy and Noah live in separate residences; however their two children (Owen, 7, and Auden, 4) see both parents daily.” Wyle met Tracy when she was the makeup artist on his indie film The Myth of Fingerprints. They married in 1998.