Resveratrol is an antioxidant and can be helpful for many ailments, but it unlikely you will notice a difference from taking it because it works on a cellular level, its not a medication that affects specific symptoms as far as I know. Most likely it would inhibit disease in the brain and heart, and reduce the affects of aging, but you don’t wake up one day and have a new heart, brain, or look 20 years younger of course!

Here is a link to numerous published medical studies on Resveratrol:

http://www.ncbi.nlm.nih.gov/sites/entrez

More studies need to be done to determine all the benefits of resveratrol. There does not appear to be any toxicity findings so far.