One completely natural supplement that has been proven moderately effective in increasing cognitive function is Ginkgo Biloba, which is derived from the Genius X Ginkgo tree and was cultivated in China for thousands of years and has been grown in North America for about 200 years. Ginkgo is primarily used to enhance concentration and memory function, but scientists are relatively undecided on the extent of its effectiveness in treating Alzheimer's or dementia. Some studies suggest that Ginkgo substantially improves attention span, increases blood flow, and protects against free-radicals in the body http://gmax-brasil.com/genius-x-reclame-aqui/