.  According to Dr. William Franklin , a friend and Personal Trainer: For corrective exercise and for anyone who is just getting up off the couch after a long time, check NASM.org and the CHEK Institute. For conditioning in general I'd expand that search to the National Strength and Conditioning Association. All of these have "find professionals" engines on their sites. Fix health deficits: if you have Insomnia, Depression, Diabetes, Cardiovascular disease, or other ailments, these should be your focus first. Increased inflammation in the body, imbalanced neurotransmitters, deficient circulation, infections, dysbiosis, and raging blood sugars all will fog your brain and are more important to correct first. You will find that boosting your But you haven't been reading this to hear "eat right and exercise," you want the juicy stuff. Here we go: 1. Determine your cognitive strengths and weaknesses. Rate yourself in the following areas: a. Memory b. Focus/concentration c. Processing/speed d. Endurance e. Creativity f. Circulatory stimulation 2. Examine your purposes -- are you studying for a big exam, a set of small exams (can you see how Naturopathic Medical school has biased my own thoughts? J ), athletic performance, getting on Jeopardy, musical creation, musical performance, etc? Think about the above areas that you seek to enhance. 3. Now let's look at my favorites for each... Memory -- the main class are the "cholinergics," in this case supplements which increase levels or function of Acetylcholine in the brain. Cholines are an easy start. In increasing order