Check out the websites for more research. Contact Kathy at [email protected]
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3839348/
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC166443/
https://academic.oup.com/gerontologist/article/56/Suppl_3/69/2576281
https://www.pnas.org/content/117/28/16258
https://www.hopkinsmedicine.org/the-academy/_docs/Roth_Academy_Feb2020.pdf