A leading neurologist has warned of a rise in neurological damage linked to misuse of nitrous oxide, also known as fast gas or laughing gas. Inhalation of nitrous oxide often makes users feel light-headed. It can also cause headaches and loss of consciousness. In certain cases, its use can trigger numbness of the hands and feet, or spinal cord damage, which is referred to as neurotoxicity. Consultant neurologist Dr Hugh Kearney told a Prime Time report that airs on RTÉ One at 9.35pm that St Jame