Melatonin as a neuroprotective health supplement

http://mentalhealthdaily.com/2015/02/17/neuroprotective-agents-list-of-drugs-supplements/

Melatonin: This is a hormone that helps the body regulate its sleep-cycle.

When supplemented, it has been thought to have neuroprotective effects as a result of its ability to reduce free radicals in the brain.

Free radicals are known to contribute to various forms of brain damage, therefore reducing the quantity could improve mental performance.

A study conducted in cats found that melatonin provided significant neuroprotection following a stroke.

Source: http://www.ncbi.nlm.nih.gov/pubmed/19196437

Source: http://www.sciencedirect.com/science/article/pii/S0188440901002685