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How and Why We Age

Environmental Determinants of Health & Aging

Our research identifies the molecular mechanisms through which social adversity and environmental stressors "get under the skin" to alter physiology and survival. We bridge behavioral ecology and genomics in two models:

  • Cayo Santiago Rhesus Macaques: Investigating how social and physical environmental adversities accelerate molecular aging. Learn more about Cayo Santiago and the CPRC.
  • The Dog Aging Project: Leveraging molecular and health data from thousands of companion dogs to explore how genetics and shared environments influence healthspan and longevity. More about the Dog Aging Project.
Neurogenomics

The Aging Brain

As part of the NIH BRAIN Initiative, we are mapping the cellular changes that define the aging brain. Using single-cell molecular technologies, we aim to understand cell-type-specific vulnerabilities to neurodegeneration.

  • Generating an anatomically resolved, single-cell gene regulatory atlas across the macaque lifespan.
  • Examining the intersection environmental stressors and brain aging to understand the mechanisms of cognitive decline.
Adaptation to Extremes

Evolutionary Genomics of Extreme Environments

We examine the molecular and physiological adaptations that help organisms thrive at the edge of their physiological limits, focusing on high-altitude populations in the Ethiopian highlands.

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Comparative Geroscience

Comparative Models of Sociality, Aging, & Longevity

We leverage comparative frameworks to understand how sociality impacts health and lifespan. By looking across species, we identify universal biological principles of aging and the unique ways different organisms are impacted by their social environments.

Our Study Systems

We work with diverse species in both free-ranging and domestic environments to address fundamental questions in evolutionary biology and geroscience.

Rhesus Macaques

Rhesus Macaques

Leveraging decades of data from the Cayo Santiago population to study lived experience and gene regulation across the lifespan.

Companion Dogs

Working with the Dog Aging Project to understand molecular aging in animals that share our homes, medical care, and environmental stressors.

Gelada Monkeys

Investigating the genomic signatures of adaptation to the extreme high-altitude environments of the Ethiopian highlands.

Our Toolkit

Our research program is powered by a multidisciplinary approach that bridges field biology with high-throughput molecular discovery.

Multi-Omics

Integrating transcriptomics, epigenetics, and systemic immunology to map the interaction between environment and the body.

Computational Biology

Developing bioinformatic pipelines and statistical tools to track health trajectories in population-scale biological datasets.

Behavioral Ecology

Placing molecular findings in a long-term evolutionary context through field-based behavioral and demographic observations.

Our Support

Our research is made possible through the generous support of several federal agencies and foundations.