Our immune system is divided into two main branches: innate and adaptive. Innate immune cells act as a first line of defense, quickly responding to invaders, while adaptive immune cells take a longer ...

Your immune system is your body’s built-in defense network, working nonstop to protect you from bacteria, viruses, and other harmful invaders. Your immune ...

A comparison between a healthy brain (left) and a brain severely affected by Alzheimer’s disease (right). Alzheimer’s leads to significant shrinkage and loss of brain tissue, reflecting the damage ...