Memory & Cognition Problems Memory and cognition problems are characterized by an inability to mentally focus and use one's cognitive abilities properly. Symptoms Symptoms of such problems include poor mental focus, difficulties learning, poor memory, difficulties comprehending reading material and other forms of information, and interrupted trains of thought. Causes Memory and cognition problems can be related to allergies, candidiasis (systemic yeast overgrowth), fatigue, thyroid problems, stroke or poor circulation to the brain, amino acid and/or mineral imbalances, environmental toxins such a mercury, and low blood sugar. All of these factors must be screened for and, if present, addressed, before long-term improvement can be achieved. Treatment Click Here For The Treatments