(CNN) -- Editor's note: Dana Santas, known as the "Mobility Maker," is a certified strength and conditioning specialist and mind-body coach in professional sports, and is the author of the book ...
Muscles are made to move. Stretching and contraction stimulate biochemical pathways within muscle that maintain tissue health. When movement slows—when a broken limb is immobilized in a cast, for ...
When labor begins, the uterus must coordinate rhythmic, well-timed contractions to deliver the baby safely. While hormones such as progesterone and oxytocin are key contributors to that process, ...
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