Health Capsules

Treating sleep as downtime misses what it actually does: regulate immunity, clear toxins from the brain, and steady your emotions. Cut it short or shift it off your natural rhythm and the risks of cancer, autoimmune disease, and neurodegeneration climb. Consistent, well-timed sleep is one of the strongest protections you control.

Your immune system fights off infections fast because of how its parts work together. These parts cover the whole system's balance and complexity, the memory cells that speed repeat defense, how phagocytes attack invaders, where immune cells live, and how to read an immune response. See how the levels connect to build a clear picture of your defenses.