The Baltimore Longitudinal Study on Aging (BLSA) is ongoing and may be of interest: https://www.blsa.nih.gov/about

Related articles from the National Institute on Aging (NIA):

Normal Aging: https://www.nia.nih.gov/research/labs/blsa/what-normal-aging

Healthy Aging: https://www.nia.nih.gov/health/what-do-we-know-about-healthy-aging

Interestingly, the NIA also has a link to a recent article on a non-human species:
"Aging deer downsize their home range and have fewer social connections" posted 10-06-2022 -
https://www.nia.nih.gov/news/aging-deer-downsize-their-home-range-and-have-fewer-social-connections