December brings cold weather, shorter days, and the joyful but hectic hustle of festive plans, all of which can sap motivation to exercise. That’s why quick, no-equipment workouts like this 5-move ...

Chair exercises for leg strength after 50, a CPT shares 5 moves that build stronger legs with less joint stress than weights.

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. Sprint interval ...

Dr. Shields is a physical therapist with a background in English Literature and a passion for healthcare and education. She hopes to combine her clinical expertise with her love of writing, establish ...