Health Highlights: Jan. 21, 2009

Jan. 22 -- Here are some of the latest health and medical news developments, compiled by editors of HealthDay:

Kennedy Released From Hospital After Inaugural Collapse

Sen. Edward Kennedy (D-Mass.) was released from hospital Wednesday morning after collapsing at President Barack Obama's inaugural luncheon in the Capitol on Tuesday.

Media reports said he was in "good spirits" on his release and was urged by his doctors to get some rest.

Tests at Washington Hospital Center late Tuesday showed that Kennedy, who was diagnosed with a cancerous brain tumor last spring, had suffered a seizure as a result of "simple fatigue," his doctor said, according to the Boston Herald.

Dr. Edward Aulisi, chairman of neurosurgery at the hospital, said late Tuesday night, "Sen. Kennedy is awake, talking with family and friends, and feeling well. He will remain. . . overnight for observation."

Sen. Jay Rockefeller, (D-W. Va.), told reporters that at the Congressional luncheon, Obama noticed when Kennedy, 76, became ill, and rushed over to his table, the Associated Press reported.

"There was a call for silence throughout the room," Rockefeller said. "The president went over immediately. The lights went down, just to reduce the heat, I think."

Obama then spoke briefly of Kennedy's latest health problem in his remarks to the luncheon guests, the New York Times reported. "Right now, part of me is with him," Obama said. "This is a joyous time, but also a sobering time. Our prayers are with him and his wife, Vicki."

Kennedy had been outside all morning to attend the swearing-in and listen to Obama's inaugural address.

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Many Children Have Mild Autistic Symptoms: Study

A new U.K. study says many children have mild autistic traits, such as difficulty communicating with peers and teachers, but their problems aren't severe enough to attract special attention.

But these mild traits could impair development, said the authors of the study, which included 8,000 children, BBC News reported.