The body’s defense system in action. Articles under this tag explore how immunity works across the body — from skin and lungs to gut and blood.
We often think of ourselves as completely human, but in truth, we’re part walking ecosystem. Trillions of microscopic creatures live in and on our bodies, forming a hidden world that shapes how we digest, fight disease, and even feel emotions.…
The skin is more than just a covering. It’s an intelligent, living barrier that breathes, senses, and repairs itself every day. Stretching over 20 square feet and weighing up to 20 pounds, it’s the body’s first line of defense —…
