A–Z Glossary

Essential tremor

A tremor disorder that can cause rhythmic head movement, sometimes appearing as yes-yes or no-no motion.

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Head Shaking Without an Obvious Reason

Head Shaking Without an Obvious Reason

What head shaking can mean in a baby In medical terms, a tremor is an involuntary, rhythmic oscillation. In a baby, though, not every repeated head movement is a tremor. Some infants sway, bob, or shake their heads briefly while they are learning to stabilize the neck and coordinate their body. Others do it during […]