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NEW YORK, N.Y. - More than half a million U.S. children are now believed to have lead poisoning, roughly twice the previous high estimate, health officials reported Thursday.

TORONTO - Three sick people. That's all it took to make scientists who study influenza edge-of-seat nervous this week over a rapidly evolving public health situation in China.

NEW YORK, N.Y. - Nearly half of young U.S. women say the first time they lived with a guy, they weren't married. That's the finding of a government survey released Thursday.

As Steve Holub nears the end of the 12-week sa¹ú¼Ê´«Ã½ Health Challenge, he’s feeling pretty good. His clothes feel looser and his confidence and energy levels are way up.

Last week, we looked at the benefits of hiring a personal trainer to get in shape.

TORONTO - Scientists have announced they have developed an animal model for the new coronavirus, an important development in the study of the new disease agent. The work was done by researchers at the U.S.

Cancer and heart disease are bigger killers, but Alzheimer's is the most expensive malady in the U.S., costing families and society $157 billion to $215 billion a year, according to a new study that looked at this in unprecedented detail.

WASHINGTON - A new global plan aims to end most cases of polio by late next year, and essentially eradicate the paralyzing disease by 2018 — if authorities can raise the $5.5 billion needed to do the work, health officials said Tuesday.

TORONTO - A new study suggests large general hospitals may hold a key to increasing the supply of organs available for transplant.

LONDON - After crocheting a colorful blanket, Joan Ferguson snuggled up under it one night and proudly thought: "This is one groovy blanket. I'm brilliant.