Natalia Perez-Segnini is a NASM-certified personal trainer, a yoga instructor, a breathwork practitioner and a trauma-informed specialist. As a head coach at Tone House—a premier athletic-based ...

Beth Skwarecki is Lifehacker’s Senior Health Editor, and holds certifications as a personal trainer and weightlifting coach. She has been writing about health for over 10 years. For strong, powerful ...

The hamstrings are the large muscles located at the back of your legs, behind the thighs. They are recruited in almost all of our daily activities from walking to bending down to standing up from the ...

As you head into the gym, you likely already have a workout plan in mind. Maybe you’re taking a light jog on the treadmill, or you’re working on some bicep curls on arm’s day. To get the most out of ...

For as different as we all are, most runners these days have one thing in common: We lead busy lives. It can be a win to just get out the door and get your miles in. As such, we often roll right out ...