REUTERS NEWS Parathyroid hormone may help battle osteoporosis Doctors control spread of antibiotic-resistant bug Healthier cattle feed benefits animals and people Younger than 55? Alcohol risks outweigh benefits Women have poorer body image than men Finding disease genes may not be so difficult Drug users need regular medical, drug abuse care Study links child's depression with later obesity RAND: US faces healthcare 'quality deficit' Exercise keeps women's minds in shape