Small mammals usually produce large litters of altricial young, resulting in high reproductive rates. In contrast, cavies give birth to few precocial young after a long gestation. The price of this ...

Pediatric growth hormone deficiency (PGHD) is a genetic condition that affects your child’s physical development. Hormone replacement therapy can help promote growth, and a new injection now makes it ...

Five patients in the United Kingdom have developed Alzheimer’s disease that appears to be the result of contaminated injections they received as children decades ago, according to a new study that ...