Millions of Hands

NEW YORK (AP) — It's dramatic news when a marathon runner collapses with no pulse. Now a big study finds such calamities are rare and usually due to a pre-existing heart problem. The study also found such incidents are increasing as more runners try to go the distance. "You hear about...

CHICAGO — Thin people may be able to summon more mental defenses to resist tempting, high-calorie foods than obese people, researchers said on Monday. Brain scans of thin people who looked at pictures of high-calorie foods showed increased activity in a region of the brain used for impulse control,...