About Bias: Why we like people better when they look like us, or agree with us.

Lately, perhaps due to the politics of an impending Brexit revote, the ongoing political infighting in the United States, issues arising from the anti-VAX movement and the threats they impose to public health, and the anti-GMO movements making the rounds, perhaps a look at bias was due. Bias, in one sense, means that we tend …

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Is the Disconnect between Biology and Culture making you Ill? Part Three: Homeostasis and Couch Potatoes who were Born to Run.

Homeostasis is really about balance, and in this case, energy balance. We are predisposed to maintain this homeostasis by taking advantage of surplus energy and storing it as fat. And while this trait has served our species for 2 million years, we no longer live in a feast or famine environment, and those conditions of …

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Is the Disconnect between Biology and Culture making you Ill? Part Two: Stressing the system

The human immune response system, much like that of other mammals, evolved over hundreds of thousands of years to be a barrier against the nasty bugs and pathogens we live with day-to-day. Since the discovery of antibiotics (and their overuse in both human medicine and industrial farming), we have created a very clean and sterile …

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Is the Disconnect between Biology and Culture making you Ill? Part One: Evolutionary Medicine.

Part One: Background Over the winter, rather disgusted at the weight that I put on over the past 20 years, I decided to do something about it. Complaining was easy, but taking steps to improve my health also proved to be quite easy as well. About 25 years ago, I was diagnosed with metabolic syndrome, …

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Do you Need an Antibiotic? What are they, What do they do, and How do they do it?

I love getting messages from readers, and G.L asks some very good questions about how modern medicine works. So good in fact, that I have decided to share them with you and to devote this month's post to antibiotics.  “Dear Dr. Davis, I read your blog and I have a question you might be able …

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What if you could live to be 500?

This morning, as I listened to the news, such as it is today; I heard part of a story that championed the significant advances in life and longevity due to the public health movement. While no one would even a tertiary understanding of public health could deny the enormous advances made in the past 125 …

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Why knowledge is the new commodity, and why your degree may ultimately be useless.

Kurt Vonnegut once wrote “New knowledge is the most valuable commodity on earth. The more truth we have to work with the richer we become.” But is that true of all knowledge, or just some? Look closely at developed nations, those with un-launched missiles and un-dropped bombs. Then look at those nations and cultures that do …

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Mycobacterium Tuberculosis: 150 Million Years in the Making

If you were to ask the average person to name the worst epidemic diseases in history, they would probably start that list with bubonic plague, or the Spanish flu. Some would even list Ebola. Few, however, would think to mention tuberculosis. Moreover, while it is not a common infection in the modern industrialized world today, …

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Bullies, Bullying, and the Long-term Consequences.

Recently, one of my followers on LinkedIn and a reader of my Medical Science Blog messaged me to ask my opinion on bullying. While I have not practiced psychology for some years, I had some experience in this capacity, although from a more personal standpoint. Any child growing up in the 1960s and 1970s most …

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