Britt Hertz spent 24 hours in splits with Anna McNulty.

Britt Hertz competed against Anna McNulty in a fit challenge.

Stretch Zone has a patented method for stretching the body. Jorden Gold, the founder of Stretch Zone, created the patented Stretch Zone Stabilization System that’s used in the company’s studios, when ...

Newly acquired Texas Rangers starting pitcher MacKenzie Gore responds to questions from the media during an introductory press conference at Globe Life Field in Arlington, January 29, 2026. Tom Fox / ...

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Muscle contraction is the tightening, shortening, or lengthening of muscles when you do some activity. It can happen when you hold or pick up something, or when you stretch or exercise with weights.