Evidence is mounting that low levels of magnesium contribute to the heavy metal deposition in the brain that precedes Parkinson’s, multiple sclerosis and Alzheimer’s. Many of the symptoms of Parkinson’s disease can be overcome with high magnesium supplementation. In a trial with 30 epileptics 450 mg of magnesium supplied daily successfully controlled seizures. Another study found that the lower the magnesium blood levels the more severe was the epilepsy. In most cases magnesium works best in combination with vitamin B6 and zinc.
Magnesium is essential in regulating central nervous system excitability thus magnesium-deficiency may cause aggressive behavior, depression, or suicide. Magnesium calms the brain and people do not need to become severely deficient in magnesium for the brain to become hyperactive. One study confirmed earlier reports that a marginal magnesium intake overexcites the brain’s neurons and results in less coherence–creating cacophony rather than symphony—according to electroencephalogram (EEG) measurements.
If magnesium is severely deficient, the brain is particularly affected. Clouded thinking, confusion, disorientation, marked depression and even the terrifying hallucinations of delirium are largely brought on by a lack of this nutrient and remedied when magnesium is given. Symptoms that multiple sclerosis (MS) has in common with magnesium deficiency include muscle spasms, weakness, twitching, muscle atrophy, incontinence, nystagmus (rapid eye movements), hearing loss, and osteoporosis. People with MS also have higher rates of epilepsy than controls, which have been linked to magnesium deficiencies.
http://magnesiumforlife.com/medical-application/magnesium-in-neurological-diseases-and-emotions/
What is the prescribed amount per day or at a time?