Introduction to Canadian Aging Research
Everyone is aging, but many are not aging well. That’s why researchers at McMaster University are focused on understanding what drives the differences among older adults, enabling more people to live longer and healthier lives through evidence-based interventions and comprehensive longitudinal research. This vital work addresses one of the most significant demographic shifts facing Canada and nations worldwide as populations age rapidly.
An important part of that research infrastructure is the Canadian Longitudinal Study on Aging (CLSA), a 20-year study collecting detailed data about more than 50,000 Canadians across diverse geographic, socioeconomic, and cultural backgrounds. This unprecedented research initiative provides crucial insights into aging processes and health trajectories.
Canadian Longitudinal Study on Aging Overview
The CLSA represents the largest and most comprehensive aging study of its kind in Canada and has been a vital global research resource since its launch in 2011. Researchers are collecting extensive information on physical health and biology, cognitive function, mobility, and social and environmental contexts, creating an unparalleled foundation for understanding how people age over time.
Unmatched Data Depth and Scope
“We have collected data that is unmatched in its depth and scope, and researchers from McMaster and across Canada are using the data to produce science of the highest quality,” says Dr. Parminder Raina, Lead Principal Investigator of the CLSA and Scientific Director of the McMaster Institute for Research on Aging (MIRA). “That is why researchers from around the world are coming to CLSA.”
McMaster’s Research Leadership Role
McMaster University serves as the study’s home base, housing its coordination centre, a major data collection centre and the Biorepository and Bioanalysis Centre, the national hub for biological sample storage and analysis. This centralized infrastructure enables efficient data management, quality control, and research collaboration across Canada’s vast geography.
National Research Hub
The concentration of CLSA resources at McMaster positions the university as Canada’s premier aging research institution, attracting top scientists, significant research funding, and international collaboration opportunities that advance understanding of aging processes globally.
Comprehensive Data Collection Methods
The CLSA employs rigorous data collection protocols capturing multiple dimensions of aging including detailed health assessments, cognitive testing, physical performance measurements, blood and urine samples, medication inventories, social network mapping, environmental exposure assessments, and longitudinal follow-up tracking health changes over decades.
Biological Sample Repository
The Biorepository and Bioanalysis Centre maintains biological samples from tens of thousands of participants, enabling researchers to conduct cutting-edge analyses using emerging technologies and biomarker discoveries that weren’t possible when samples were originally collected.
Government Funding and National Investment
Funded by the Government of Canada, the Canadian Institutes of Health Research, and 11 partner universities, the CLSA represents one of the largest national investments in aging research globally. This substantial funding commitment reflects recognition that aging research delivers enormous societal returns through improved health outcomes, reduced healthcare costs, and enhanced quality of life for older Canadians.
McMaster Institute for Research on Aging Mission
The CLSA study is a cornerstone of McMaster’s leadership in aging research and a foundational platform that supports MIRA’s mission to improve the lives of older adults through interdisciplinary research, innovation and meaningful partnerships. Since launching in 2016, MIRA has brought together researchers from all six McMaster faculties to address aging comprehensively.
Interdisciplinary Integration
MIRA recognizes aging as a complex, interconnected process that includes biological, clinical, psychological, social and environmental factors. This holistic approach reflects the lived reality of aging and enables solutions that move beyond traditional disciplinary boundaries that often fragment understanding of aging experiences.
Interdisciplinary Aging Research Approach
“Aging does not happen in silos,” emphasizes Dr. Raina. Individual aging trajectories result from interactions between genetics, lifestyle behaviors, social relationships, economic resources, healthcare access, environmental exposures, and countless other factors that cannot be understood through single-discipline research approaches.
Community Partnership and Older Adult Engagement
Older adults, caregivers and communities are key partners in the research underway at MIRA to ensure discoveries lead to solutions that are relevant, usable and equitable. This participatory approach fundamentally changes research dynamics by centering older adults’ lived experiences, priorities, and wisdom.
Ensuring Research Relevance
“If interventions or technologies are not designed and tested with older adults in mind, they are unlikely to be effective,” Dr. Raina explains. “Engagement ensures that our research truly improves lives.” This philosophy prevents researchers from developing solutions that may be theoretically sound but practically useless in real-world aging contexts.
Optimal Aging Portal Knowledge Translation
The Optimal Aging Portal is MIRA’s flagship knowledge translation and public engagement platform, providing trustworthy, plain-language information on aging, grounded in the latest research from McMaster and global partners. This digital resource democratizes access to aging science.
Evidence-Based Public Information
“Generating evidence is only part of our responsibility,” says Dr. Raina. “We also have a responsibility to ensure people understand and use that evidence in their daily lives. The Optimal Aging Portal allows us to do exactly that.” The portal supports older adults, caregivers, health professionals, community organizations and policy makers through articles, videos, webinars, and curated resources.
Mobility Research and MacM3 Study
Mobility in all its forms is one of the strongest predictors of independence, health, and quality of life for older adults. MIRA, internationally recognized for mobility research, is following more than 1,500 participants over several years using wearable devices as part of the McMaster Monitoring My Mobility (MacM3) study.
Innovative Wearable Technology
This groundbreaking research represents the first study of its kind, incorporating both GPS and accelerometers, to explore how and why people lose mobility as they age and identify early warning signs for serious health issues down the road. The study is led by Dr. Marla Beauchamp, the Canada Research Chair in Mobility and Aging and an associate professor in Rehabilitation Science.
EMBOLDEN Program for Fall Prevention
One of MIRA’s flagship interdisciplinary research programs is EMBOLDEN (Enabling Mobility, Balance, and Resilience in Older Adults), which aims to understand and address the complex factors that contribute to mobility decline, falls, and loss of independence among older adults.
Implementation Science Focus
Led by Rebecca Ganann, an associate professor of Nursing, the program emphasizes translation and implementation of data into practice, community programs and policy. This implementation focus ensures research findings actually change clinical practice and community services rather than remaining in academic journals.
MIRA-iGeN Intergenerational Aging Study
Aging can vary wildly across different generations, with some people more susceptible to cardiovascular disease, cancer, mental health disorders, diabetes, and dementia than others—despite sharing the same risk factors. The MIRA-iGeN (Intergenerational Study on Aging) examines how relationships, resources, and experiences across generations shape health, resilience, and aging trajectories.
Generational Health Patterns
Led by Dr. Raina and Dr. Andrea Gonzalez, an associate professor in the Department of Psychiatry, the study explores how family structure, caregiving, social connection, education, work, and socioeconomic conditions influence aging. “Understanding those connections allows us to design interventions that support individuals, caregivers, and communities together,” says Dr. Raina.
Brain Health and Cognitive Decline Research
MIRA leads major programs in brain health and cognitive aging, leveraging longitudinal data, biomarkers, neuroimaging, and digital assessments to identify early risk factors and protective pathways for cognitive decline and dementia. This comprehensive approach combines cutting-edge neuroscience with population health research.
Pain and Musculoskeletal Health Programs
The institute also advances research on pain and musculoskeletal health, recognizing chronic pain as a major driver of disability, reduced mobility, and diminished quality of life among older adults. Effective pain management represents a critical component of healthy aging strategies.
Dixon Hall Community Partnership for Equity
MIRA’s commitment to equity has led the institute to partner with Dixon Hall, a community-based organization serving vulnerable older adults in Toronto’s downtown east end—one of the most culturally and linguistically diverse urban areas in Canada. “Thirty-four languages are spoken within a 13-kilometre radius of Dixon Hall,” says Dr. Raina, illustrating the challenge and importance of culturally responsive aging research.
