Trainers share their favorite ways to loosen up.

THE STATE OF your hamstrings determines more about your body’s condition than you might expect. Tightness in your hamstrings can cause back pain, hip mobility, and even bad posture. “Tight hamstrings ...

View post: A 41-Year-Old CCO Shares the Exact Recovery Protocols and Nutrition Plan He Swears by During HYROX Training “The reason to stretch your hamstrings is to keep your hips and lower back moving ...

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. Are your hamstrings ...

Tight hamstrings are an incredibly common complaint among runners, whether they spend their time at a local parkrun, are getting ready for their next 10K race or are training for a marathon. Actually ...