aging and immunity

The Role of Autophagy in Immune Health: How Cellular Recycling Strengthens Your Defenses

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Autophagy and the immune system — infographic showing cellular recycling, T-cells, mitochondria, and immune defense mechanisms.

Have you ever wondered how your body gets rid of old, damaged, or “junk” cells that no longer work properly? The answer lies in a fascinating biological process called autophagy—literally meaning “self-eating.” Far from being destructive, this cellular recycling system is essential for maintaining health, energy, and especially strong immunity. Scientists now recognize that the … Ler mais

Immunosenescence: Why the Immune System Ages and How to Slow It Down

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Immunosenescence — illustration of the aging immune system, showing thymus shrinkage, weaker T-cells, and inflammation.

As we age, our immune system doesn’t remain as sharp as it once was. Scientists call this natural decline immunosenescence—a gradual weakening of the body’s defenses that makes older adults more vulnerable to infections, cancer, and slower recovery. Unlike the visible signs of aging, such as wrinkles or gray hair, immunosenescence works silently inside the … Ler mais