Naturalaid Wellness on Instagram: "🛡️ The Hidden Superpower of Your Immune System 👇 Your immune system isn’t just a shield against illness. It’s an active surveillance network — constantly scanning for threats. Two of its most powerful defenders are cytotoxic T-cells and natural killer (NK) cells. These immune cells identify and remove virus-infected and abnormal cells before they can multiply or spread. They play a central role in immune balance, recovery, and long-term health. When their act