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 ...

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 ...

I’ve wanted to perfect the splits ever since I was a child. I was in awe of everyone in my dance class who could glide into box splits like it was NBD, but after many failed attempts, I was told I ...