Mechanisms
The biology of aging explained: mitochondria, senescence, telomeres, and cellular pathways.
Altered intercellular communication: when the signals break down
How aging disrupts hormonal, immune, and paracrine signaling between cells, spreading dysfunction systemically.
Cellular senescence: the cells that refuse to die
How senescent cells accumulate with age, damage surrounding tissue through inflammatory signaling, and why clearing them matters.
Chronic inflammation: the slow burn that accelerates aging
How low-grade, persistent inflammation drives tissue damage, disease risk, and systemic aging across every organ system.
Deregulated nutrient sensing: growth signals that outlast their usefulness
How chronic activation of growth pathways like mTOR, insulin/IGF-1, and AMPK shifts cells away from repair and toward aging.
Disabled macroautophagy: when cellular cleanup fails
How age-related decline in autophagy allows damaged components to accumulate, accelerating dysfunction across tissues.
Dysbiosis: the gut-aging axis
How age-related shifts in gut microbiome composition and barrier function contribute to systemic inflammation and metabolic decline.
Epigenetic alterations: when cells forget what they are
How age-related changes in DNA methylation, histone modification, and chromatin structure degrade cellular identity and function.
Genomic instability: the reference layer under pressure
How accumulated DNA damage across nuclear and mitochondrial genomes drives aging, why repair systems decline, and what intervention directions exist.
Loss of proteostasis: the protein maintenance collapse
Why protein folding, quality control, and clearance systems fail with age, and how proteostatic decline drives cellular dysfunction.
Mitochondrial dysfunction: the engine problem behind aging
How mitochondrial decline drives the hallmarks of aging, and which interventions target it directly.
Mitochondrial dysfunction: the engine problem behind aging
How mitochondrial decline drives the hallmarks of aging, and which interventions target it directly.
Stem cell exhaustion: the regenerative decline
How aging depletes and dysregulates stem cell populations, reducing tissue repair capacity across the body.
Telomere attrition: the replication clock and its limits
What telomere shortening means for cellular aging, how it connects to senescence and cancer, and why direct intervention remains complicated.