Our bodies are intricate masterpieces made up of countless biological systems and cycles, all working in harmony. Yet, many of these processes are so complex that we rarely understand what’s truly happening beneath the surface. Among them, one of the most fascinating is the body’s built-in system of defense mechanisms — a silent guardian that operates around the clock, protecting us from countless internal and external threats. Below are nine amazing examples of things your body does naturally — actions you might never have realized were part of your body’s defense system. YawningYawning isn’t just a sign of boredom or...
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