Your brain is capable of optimal functioning, but when your central nervous system is off kilter your brain operates inefficiently. Symptoms of a less than optimally functioning central nervous system can include: memory problems, poor performance on tasks, difficulty sleeping, feeling low or sad, difficulty paying attention, overactivity, feeling anxious, addictions, headaches, catching colds and infections, irritability, feeling stressed and overwhelmed.Though NeurOptimal is not a medical treatment for illnesses, many people have experienced relief from physical, mental, and emotional symptoms. Athletes, business professionals, students, and musicians have also experienced enhanced performance.