Organ Donation: An Advancing Science Hindered by Supply Shortages

SUNDAY, June 29 (HealthDay News) -- More than 98,000 Americans are clinging to life this very second, and their only chance for survival is a dead person's generosity.

 Activity-Linked Heat Illness Needs Prompt Attention

SUNDAY, June 29 (HealthDay News) -- As the mercury continues to rise, people of all ages should take precautions to ward off heat-related illness while exercising, playing or taking part in any kind of physical activity outside.

 Health Highlights: June 29, 2008

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