[Source: Medical X-Press]

Scientists have just discovered why babies need to move in the womb to develop strong bones and joints. It turns out there are some key molecular interactions that are stimulated by movement and which guide the cells and tissues of the embryo to build a functionally robust yet malleable skeleton. If an embryo doesn’t move, a vital signal may be lost or an inappropriate one delivered in error, which can lead to the development of brittle bones or abnormal joints.

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