Systems biology, iron and alzheimer's, age pigment in aging and stress

This show highlights the idea of food as medicine and how far reaching the effects that diet has on our health and its role in aging and disease.  As an example, I introduce the concept of lipofuscin, otherwise known as liver spots or age spots, as a way to discuss that what we see on the outside of the body is really happening on the inside.  These skin pigments tell a far greater story and are even implicated in neurodegenerative diseases like Parkinson's and Alzheimer's.  Just what is behind all of this?  What can you do to help prevent unhealthy aging?   References: Brain Iron May Predict Progression in Alzheimer's http://www.medscape.com/viewarticle/874539   Age pigment: Cause and Effect of Aging and Stress http://www.artcamp.com.mx/EZINES/30OpeningEyes/7/aging&stress.htm   Systems Biology https://www.systemsbiology.org/about/what-is-systems-biology/