Skip to main content
Main navigation
About
About
Welcome Letter
Introduction to HRS
HRS Scientific Leadership
Help Desk
Partnerships and Collaborations
News
Links
Site Statistics
Privacy and Security Statement
Documentation
Documentation
Questionnaires
Codebooks
Data Descriptions
Question Concordance
Using HRS Data: A Guide for New Users
User Guides and Documentation Reports
Survey Design and Methodology
Video Tutorials
Archived Webinars
DMC Review Papers
Experimental Modules
Family Data
Data Products
Data Products
Public Survey Data
Sensitive Health Data
Restricted Data
Cognition Data
Genetic Data
Biosamples
COVID-19 Research Initiatives in the HRS International Network
Administrative Linkages
RAND HRS Products
Life History Data
Contributed Projects
Conditions of Use
Data Announcements
Data Alerts
HRS File Merge Reference
Media & Publications
Media & Publications
HRS Bibliography
Information for Media Members
HRS in the News
Submit your Publication
Reports and Graphs
Email Newsletter Archive
HRS Bibliography
Search Filters
Authors:
Halvorsen, Cal
Clear All Filters
Displaying 1 - 4 of 4
2025
Reducing Hypertension Through Volunteering? Investigating the Potential Causal Link Between Volunteering Frequency and Blood Pressure by Gender, Race, and Age Groups.
Seoyoun Kim
,
Koichiro Shiba
,
Cal Halvorsen
Biopsychosoc Sci Med
, 2025
DOI
PubMed
Google Scholar
Does volunteering reduce epigenetic age acceleration among retired and working older adults? Results from the Health and Retirement Study.
Seoyoun Kim
,
Cal Halvorsen
,
Claire Potter
,
Jessica Faul
Soc Sci Med
, 2025
DOI
PubMed
Google Scholar
2024
VOLUNTEERING AND EPIGENETIC AGE AMONG RETIRED AND WORKING OLDER ADULTS: EVIDENCE FROM HEALTH AND RETIREMENT STUDY
Seoyoun Kim
,
Cal Halvorsen
,
Claire Potter
2024
DOI
Google Scholar
2023
Volunteering and Changes in Cardiovascular Biomarkers: Longitudinal Evidence from the Health and Retirement Study
Seoyoun Kim
,
Cal Halvorsen
,
Sae Han
Innovation in Aging
, 2023
DOI
Google Scholar