Definition of demo written for English Language Learners from the Merriam-Webster Learner's Dictionary with audio pronunciations, usage examples, and count/noncount noun labels. Learner's Dictionary mobile search
Magnesium deficiency is often a precursor to sleep disorders, such as anxiety, hyperactivity and restlessness. Itâs been suggested that this is because magnesium is vital for GABA function, an inhibitory neurotransmitter known to âcalmâ the brain and promote relaxation.
Low magnesium levels in the body put a drain on calcium supplies. Once calcium is exhausted, nerves cells stop functioning. Magnesium acts as a depressant calming the nerves and inducing sleep. Calcium has a role in making muscles contract while magnesium is needed to make the muscles relax. When magnesium levels are low, a person may experience symptoms, such as irritability, muscle twitching and nervous fatigue.