The Hidden Architecture of Muscle Aging: Why Protein Isn't the Whole Story
New research reveals that muscle loss in aging isn't just about declining protein synthesis—it's rooted in the physical deterioration of mitochondrial-endoplasmic reticulum contact sites within cells, structures essential for energy management and cellular signaling. This discovery suggests that current interventions focused solely on protein intake and resistance training may be missing a deeper cellular mechanism, potentially opening the door to entirely new therapeutic approaches for reversing age-related muscle decline.
The skinny
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