Add Yahoo as a preferred source to see more of our stories on Google. Our core is made up of four muscle groups that are essential to everyday movements, like walking and lifting. And when people ...

Let's be real: Jan. 1 has a reputation for big fitness energy, but in reality, many people wake up feeling more "horizontal" than heroic. Still, getting a workout in on New Year's Day can be ...

There are millions of tips and tricks to get a better night’s sleep—a personalized mattress, eating dinner early, sleeping with a crystal under your pillow. But what about working out? And you can ...

I'm not a huge fan of crunches. The move is easy to perform incorrectly and doing so puts a lot of strain on the neck. Another reason I don't love them is that if you're short on time, they aren't the ...