Feb. 16, 2026 A parasite that may already be hiding in your brain has a shocking survival trick: it can infect the very immune cells sent to destroy it. Yet most people never get sick, and new ...

The immune system is a complex network that finds pathogens, removes damaged cells, and launches immune responses to protect the body from infection. White blood cells drive this defense: phagocytes ...

The musculoskeletal system is an organ system comprising the bones, muscles and connective tissues (including cartilage, tendons and ligaments) that bind tissues and organs together. The main ...