A great article from the American Trail Running Association. https://trailrunner.com/trail-news/growing-older-with-trail-running-advice-from-a-70-year-old-athlete/
If you're looking for quick read, a little motivation, and maybe a few helpful tips along the way, Not Dead...
http://www.espn.com/espnw/culture/article/27073873/103-year-old-runner-julia-hurricane-hawkins-bikes-bucket-list-brooklyn-bridge When someone says they didn't start running until "late in life", we don't expect that to be after their...
https://www.runnersworld.com/news/a25593341/70-year-old-marathon-record/ No matter your age, there's always somebody older that you can look to for inspiration.
A nice excerpt from a book that I'm reading: "Fast-Track Triathlete: Balancing a Big Life with Big Performance in Long-Course...