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.

Guys, there is so much to look forward to about pregnancy and birth: the adorable socks, that thing babies do when they grab your finger, and, you know finally getting that other living thing out of ...

THE baby arrives after the contractions start. But what starts the contractions? Researchers have confirmed the exact physiological mechanism responsible – contractions begin when the hormone ...

What Are Premature Ventricular Contractions (PVCs)? If your heart feels out of rhythm or “flutters,” especially when you're anxious or stressed, it could be caused by premature ventricular ...

Pregnancy is filled with weird aches, pains, and twinges, and some are a little scarier than others. Former Bachelorette star Ali Fedotowsky recently had a particularly confusing experience with ...

If you are close to your due date, there are some things you may want to avoid if you don’t want to trigger contractions. Dehydration is one of the main causes of false and true labor contractions.