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A new narrative review traces how fasting flips the cell's recycling program through AMPK, mTOR and ketone signaling — and how cautiously the human evidence still reads.
Scientists watching a new fluorescent sensor inside Alzheimer's-model mouse neurons spotted a quieter fuel crisis — and a possible way to refill the tank.
A wave of 2025 research is pushing aging biology past single-pathway thinking — toward an integrated, system-level model that includes surprising new players like rRNA methylation and the slow failure of cellular recycling.