Katharine Hepburn had it. So did playwright Eugene O'Neill and Sen. Robert Byrd. Essential tremor is a condition that causes involuntary shaking. While it usually develops in middle age, it can start ...

COLUMBIA, Mo. (KFVS) - New research is revealing to scientists that a patient who quickly shakes their head back and forth after a traumatic impact likely has a concussion. Researchers from the ...

Cleveland Browns wide receiver Elijah Moore suffered a concussion during Thursday night’s Week 17 game between his Browns and the New York Jets. His actions after he suffered his brain injury were ...

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Michael Preston suffers from a hereditary neurological disorder called paramyoclonus multiplex, which causes involuntary shaking of the head and arms. The shaking tends to become worse when he is ...

It's easy to think that a shaking hand could be a sign of Parkinson's disease. But it's more likely essential tremor, an ailment that's not... Katharine Hepburn had it. So did playwright Eugene ...