Cross training is underrated . Intimately learned about overuse injuries in my 50’s. Relearning it in my 60’s. Portfolio diversification can be applied to exercise routines. dad . • • • • • This website is about our BODY. To read today’s post about our SPIRIT, click here. By jeff noel Retired Disney Institute Keynote Speaker and Prolific Blogger. Five daily, differently-themed personal blogs (about life's 5 big choices) on five interconnected sites. View all of jeff noel's posts.