What is motor neurone disease (MND)? Our video explains the key facts about the disease. Awareness raising never stops 👉 mndassociation.org | MND Association

Primary lateral sclerosis (PLS) is a type of motor neuron disease. A motor neuron disease affects the nerve cells in the brain that control movement. In PLS, the breakdown of nerve cells causes weakness in the muscles that control the legs, arms and tongue. Symptoms typically begin with balance trouble. People with PLS may move slowly and are clumsy. Over time, symptoms evolve to include having trouble with their hands and arms, followed by problems with chewing, swallowing and speaking. Less co