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. Free weights and ...

While muscle groups like the chest, biceps, and glutes tend to get an abundance of attention, no strong physique is complete without a well-developed back. All too often, however, we overlook back ...

When you work out at the gym, you usually have the choice between free weights or machines for strength training. Machines use cables and stacks of weight to provide resistance. These provide some ...