Latest Articles

The Freakonomics of Sleep (Part 1)

Back in May of this year, I give a presentation entitled Sleep, Productivity, and Peak Performance at a CEO summit in Manhattan hosted by VC firm, Firstmark Capital. After I presented, Steven Dubner of Freakonomics spoke about the man who smashed the world record at Nathan’s hot dog eating contest. See more about this story in the blog post. After we both presented, Dubner approached me for an interview to discuss sleep. My interview was included in the two-part series that they just published on the subject.


How to design health for life (video)

This may seem like a strange question, but have you ever wondered if the makers of your health apps design their products based on a clear idea about how it helps you achieve health? This video of my presentation at the HxRefactored conference in Boston, which was released today, describes the thesis upon which we base the design of our entire health-supporting ecosystem. As a member of our community, I encourage you to give it a look and add comments below.







What Your Doctor Isn’t Thinking About (Dragging Medical Professionals Into the Modern Era)

The other day I came across this alarming video of what it’s like to drive in Poland. My first thought after watching the clip was “What’s the Toxoplasmosis gondii infection rate in Poland?” T. gondii is a brain parasite easily acquired from eating undercooked meat, or contact with cats, and is associated with a six-fold increase in traffic accidents (this association has been replicated a number of times, in different countries). Well, I looked it up, and found that the latent infection rate in 2003 was around 41% (at least among pregnant women). That’s quite high — in the U.S. the infection rate is only about 11%.

Is there anything to my hypothesis that terrible driving in Poland is related to the relatively high T. gondii infection rate? Probably not. The accident fatality rate in Poland is relatively high for a modern industrialized country. But France has a very low accident fatality rate, and a much higher rate of T. gondii infection. So while T. gondii might be a contributing factor, it’s probably not the most important variable.

I’m fascinated by latent/chronic biological infections, and how they affect human health and behavior. T. gondii in particular is linked to changes in personality, and even schizophrenia.



How Much Sleep Do You Need?

I recently published an article entitled “How Much Sleep Do You Need?” for Chriskresser.com. Check out the first part below . . .