Neuropsychological tests 

are specifically designed tasks used to measure a psychological function known to be linked to a particular brain structure or pathway. 

Antioxidants

Substances that may protect cells in your body from free radical damage that can occur from exposure to certain chemicals, smoking, pollution, radiation, and as a byproduct of normal metabolism
- The human body even generates its own antioxidants, such as the cellular antioxidant glutathione.