For every CrossFitter killing it workout after workout, posting legit numbers and seeing strength, mobility and endurance flourish, there’s the guy cutting corners or going overboard with training, ...

CrossFit builds strength, endurance, and skill, and is a great way to workout, trainers and coaches told Insider. To build muscle and lose fat, bodybuilding training is usually optimal, personal ...

David Lloyd George, a 23-year-old graduate student, set a new world record for most muscle-ups in 24 hours. He trained for nine months, drawing inspiration from ultramarathon runners' training ...