many of our tissues, which causes sagging skin and wrinkles and can lead to inflammation in joints, rheumatoid arthritis, degradation of cartilage, and osteoarthritis: our bones get brittle, our joints are in pain, and we definitely can’t go for a run in the park. If there are too many free radicals and too much damage inside a cell, that cell can decide to undergo cell death to prevent further issues. But this isn’t without consequences. When cells die, parts of us disappear: our bones waste away, our immune system weakens, our heart pumps less well, and neurodegenerative diseases such as
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