Geroscience

Definition

Geroscience is an interdisciplinary field that studies how the biology of ageing drives multiple chronic diseases, emphasizing shared mechanisms such as inflammation, epigenetic change, and cellular senescence rather than single-disease pathways. [1]

Core Idea

The geroscience hypothesis holds that ageing biology is a primary risk factor for multimorbidity, so interventions that modify ageing processes could delay or attenuate cardiovascular disease, cancer, and neurodegeneration in parallel, improving healthspan more efficiently than treating each condition in isolation. [2]

Central Hypothesis

Mechanistic targets align with recognised hallmarks of ageing such as genomic instability, loss of proteostasis, and mitochondrial dysfunction; preclinical studies indicate that interventions like calorie restriction can shift multiple ageing phenotypes simultaneously. [3]

Relation to Other Fields

Geroscience integrates molecular biology, epidemiology, and clinical translation. It is narrower than gerontology in scope but closely linked, prioritising cellular mechanisms while informing programs such as the NIH GeroScience Interest Group that bridge basic ageing biology with chronic disease research. [4]

References

1. Kaeberlein, M., et al. (2016). The geroscience hypothesis: is it possible to change the rate of aging? Cold Spring Harbor Perspectives in Medicine. https://pmc.ncbi.nlm.nih.gov/articles/PMC4817738/
2. Ferrucci, L., et al. (2024). Geroscience hypothesis and multimorbidity. The Journals of Gerontology: Series A. https://academic.oup.com/biomedgerontology/article/79/9/glae179/7744984
3. Lemoine, M., et al. (2023). Targeting hallmarks of aging to extend healthspan. Cells. https://pmc.ncbi.nlm.nih.gov/articles/PMC10202082/
4. National Institute on Aging. The intersection of basic aging biology, chronic disease, and health (GeroScience Interest Group). https://www.nia.nih.gov/research/dab/geroscience-intersection-basic-aging-biology-chronic-disease-and-health