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. Curls are the classic ...

Zac Efron is currently shooting season two of the hit Netflix show Down to Earth in Australia, and the actor has been sharing some revealing behind-the-scenes photos of what fans can expect when the ...

You don’t need endless curls to build bigger arms. According to personal trainer Jack Hanrahan, a simple approach may be more than enough. 'I do two bicep exercises per week,' says Hanrahan in a ...