We here about athletes coming out of retirement to make comeback all the time. Why do they do this? Is it actually a good thing? And might we consider it ourselves as we get older?

When you've done CrossFit as long as I have you figure a few things out. Today I'm going to share my two personal rules with you. Try them out - they make all the difference for me.

Partial range of motion or full range of motion? Which is better for the squat? Maybe it depends on your goals. Science looks at the two variations and what works best about both versions.

The shift from the pull to the knees to the power position is one of the most difficult aspects of coaching technique. Here's a simple exercise to teach the feeling of this movement.

Vegan, CrossFitter, mother, coach, mature athlete, spouse of an athlete, and a newly-minted tennis player. That's Danette "Dizzle" Rivera. Read her answers to our 12 Reps questions.

Autumn brings darkness, shadow time, and introspection. Keep yourself warm and energized with this yoga sequence - a physical and mental evaluation and cleansing.

In writing about the RKC, I realized what I learned in getting ready for it applies to all coaches. These are 5 lessons that will make you a better, more successful coach in any discipline.

As a pregnant woman, what if you could relieve morning sickness and joint pain, and have a sense of well-being all because of one activity? Well, then it's time you try swimming.

You know you get a boost from caffeine, but are taurine and B-vitamins in your energy drink doing anything at all? Scientists tested Redbull to determine if those other ingredients help.

Although I was still sick this week, I made some adjustments to my schedule and was able to train. I even surprised myself and crushed a PR on Thursday!

Jeremy Scott shares his simple two-week plan to tighten up your mid-section, including his tips for clean, sustainable eating and how to carb cycle for maximum fat burning.

We hear a lot about natural birth these days. Learn how to get in touch with your psoas to improve your chances of natural delivery, with some tips from psoas expert Liz Koch.

In part two of our road to the muscle-up, gymnastics expert and coach Dusty Hyland talks about the importance of the hollow position and how to practice the hollow hold.

I teach group fitness classes and I love how well they work for people. Science calls it "social comparison theory." Find out why a group mentality is a good thing when it comes to fitness.

Vegan since the age of 16, Ed Bauer was a competitive bodybuilder and now competes in CrossFit. Ed wants to lead by example and show people how vegans can be successful athletes, too.

You've no doubt seen the commercials or seen women wearing the giant, rocker-bottomed Skechers Shape-Ups. Well, now science has proven they don't do any good.

It’s been a great week – positive news about my calf and the new bike getting here. Training has been great as well, with over twelve total hours for the week.

Studies show most people don't get as much choline as they need. This is particularly critical for breastfeeding and expecting moms. Find out why it's important and get a great egg recipe, too.

Chris Herren was living the dream, playing for the Boston Celtics. And then he threw it all away on drug addiction. In the eye's of fan he went from hero to villain. Now, he works to be a real hero.