Lifestyle Factors and Alzheimer's Disease.

Dedication This Special issue is dedicated to my PhD mentor and friend Prof. Hanan Frenk. I am forever grateful for his guidance, encouragement and support. He taught me how to ask research questions, design experiments, write papers and how to navigate the world of science. His inspiring personal example and integrity are the bedrock of my scientific pursuits. His jokes and unedited advice ring in my ears even thirty years later: If you work only from 9-5 you will never be a scientist. If you don’t know how to write you will never get a faculty job. Life is not fair, just keep your focus. And: ’Wow, we published your paper [1]. Let me invite you over to our house for dinner to celebrate’.