The TNA aims at furthering our understanding of aging and age-related disorders, in particular, neurodegenerative ones. TNA focuses on understanding the murky grey zone between physiological aging and preclinical and early symptomatic neurodegenerative disorders such as Alzheimer`s disease. Intriguingly, traumatic brain injury recapitulates many of the features found in aging and early symptomatic Alzheimer`s disease. Uniquely TNA takes advantage of its clinical as well as basic scientific knowledge and experience to bring further progress in its specific research field of interest. Thorough understanding of behavioral and cognitive neurology is coupled to stem cells and animal models of aging and neurodegeneration with particular attention to synaptic and axonal changes.