Dan is an entrepreneur and researcher whose life’s work is how to facilitate health behaviors in others. He is the developer of Loop Model to Sustain Health Behaviors to help people live a healthy lifestyle in a modern world. He does research in the Psychiatry and Behavioral Sciences Department at Stanford and the Departments of Neurology and Endocrinology at Leiden University in the Netherlands. Follow him @dansplanhealth. I've wanted to get Dan on the show since attending the Ancestral Health Symposium in Berkeley last summer and seeing the compelling presentation How Quantified Self Technologies Will Help Us Live More Like Our Ancestors. Dan talked about how education alone may not be enough to enable someone to make a change and improve their health. Up until now education is most of what I do. I find problems with lab work, most of which is due to poor diet and lifestyle choices, and then I try to education the person so that the problem doesn't happen again. A better way would be to also give that person tools that would support better decision-making. Those tools are dansplan.com and the Ideal Weight Program.