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. June 12, 2020 Add as a ...

It’s that time of year that the kids just got back to school, and you want to really try to get into shape this year. Firefighter Tim says a great way to do that is to add resistance training into ...