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. I did a HIIT ...

As a young teen, I first tried kickboxing in a group fitness class with my mom. I loved it so much that I eventually got my own punching bag to use at home after school so that I could release my ...

CKO Kickboxing is a kickboxing franchise that helps people burn fat and lose weight, all while having fun. Gym members set their own fitness goals, and trainers help them achieve them through ...

A rainbow of lights dances across the room, a DJ blasts popular 1970s tunes and kickboxers decked out in sequins, bell-bottom pants and afro wigs don their boxing gloves as the class gets underway.