The study is the first to examine how substantial growth of preferred pharmacy networks maintained by PBMs may have contributed to the struggles of retail pharmacies.

A novel health-assessment tool uses eight metrics derived from people's physical exam and routine lab tests to characterize their biological ages as well as the age of their individual organ systems.   It may be able to predict a person’s risk of disability and death better than current health predictors. The method, called the Health Octo Tool, might make it possible to identify new factors that affect aging, and to design interventions that prolong life.

Neuroscientists are developing methods to map the brain systems that allow us to recognize and get around our world.

MIT chemists found a way to identify a complex sugar molecule in the cell walls of Mycobacterium tuberculosis, the world’s deadliest pathogen. This labeling could lead to simpler, faster TB tests.