Motor Neuron Disease (MND) affects nerve cells in the spinal cord that control muscle movement. It causes weakness in the limbs, speech, swallowing and breathing. MND includes Lou Gehrig's Disease and there are three types. The Ice Bucket Challenge raised money and awareness for MND research by challenging people to dump a bucket of ice water on their heads. People with MND need help from medical professionals and community workers to live with the disease as its causes are still unknown and more research is needed to find treatments.