A workout routine that's been popular with soldiers and athletes for years has gained popularity in Southeast Missouri, drawing followers of all ages, sizes and fitness levels. CrossFit -- officially ...

Now, at 55 years old, I’m a CrossFit trainer and certified sports nutritionist who throws a barbell around daily and competes in fitness challenges, and I’m feeling stronger and more alive than ever.

The authors do not work for, consult, own shares in or receive funding from any company or organization that would benefit from this article, and have disclosed no relevant affiliations beyond their ...