Another one from WDDTY. Over-the-counter Ginkgo Biloba can reduce stroke damage by half, according to a new lab study. It also reduces the degree of paralysis & limb weakness that can result from a stroke. Researchers at John Hopkins Institute in Baltimore, USA, discovered that a daily Ginkgo supplement offered protective effects even after just one week. Stroke, 2008; doi:10.1161/strokeaha.108.523480).