Your Health: Jan. 14, 2002

GOOD NEWS

HEART REPAIRS Talk about a sign of acceptance. Research-ers studying men who received heart transplants from women discovered male cells growing in the donated female hearts--a surprising upheaval of the conventional wisdom that the heart cannot regenerate tissue the way other organs can. Doctors are now searching for cardiac stem cells that could repair hearts without a transplant.

BAD NEWS

VITAMIN OVERDOSE Healthy skin, shiny hair...and hip fractures? They're all associated with retinol, a vitamin-A compound found in liver, fish oils and other supplements. Retinol is usually linked to good skin and improved eyesight, but researchers say too much...

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