There are two things I know to be true. One, I love a challenge. (Perhaps you remember my daily plank practice?) And two, I hate failing. When the opportunity to partake in a flexibility challenge ...

Add Yahoo as a preferred source to see more of our stories on Google. Photo credit: Jewelyn Butron / Amanda Mactas There are two things I know to be true. One, I love a challenge. (Perhaps you ...

Lindsey Ellefson is Lifehacker’s Features Editor. She currently covers study and productivity hacks, as well as household and digital decluttering, and oversees the freelancers on the sex and ...

Let’s Do the Splits! Flex Friday 💪 Hey! It's Flex Friday, and today we’re going to work on something FUN and super challenging: the splits! Whether you’re just starting out or already on your way to ...

We independently review everything we recommend. When you buy through our links, we may earn a commission. Learn more› By Elissa Sanci Elissa Sanci is a senior writer who has reported on label makers, ...

Split training refers to dividing weekly workout sessions or the volume of exercises into separate days to focus on individual elements. Some examples include full-body or push/pull/leg splits.