Its complex network of cells, organs, proteins, and tissues enables ... signals to other cell types to do the same. The lymphatic system forms a network similar to the blood vessels.

In six of the seven clocks tested, the team found that oral tissue resulted in substantially less accurate estimates of biological age than blood-based samples. "We tested three types of blood ...

When this happens, your organs and tissues have a harder time ... according to the amount of hemoglobin in the blood. There are many different types and causes of anemia. Some types of anemia ...