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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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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Climate Disruption, Forest Fragmentation: How Reduced Biodiversity leads to Increased Disease Load from Zoonosis.

Recently, an exchange on social media concerning Lyme disease and ticks prompted a good deal of disinformation, which was followed by several text messages to me asking such questions as, "Can ticks really carry rabies?" or, "Is there a vaccine for Lyme disease?" At a time of climactic change, we are seeing a rapid rise in …

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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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Inoculations or Masks. One Epidemiologists View.

Recently, I was asked by a Healthcare Provider in my State my opinion concerning a company policy. There has been some issues around the influenza policy of this healthcare organization, where healthcare workers can either get the seasonal vaccination or wear a mask for the season. As an  epidemiologist, what were my thoughts on such …

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Could we blow up the world with nuclear weapons?

Ever since the latest ruler of North Korea began testing missiles; the threat of detonation of nuclear devices is more often on the minds of the public. Simply stated, as long as these weapons of annihilation exist, so too will the temptation to use them. Although military experts speak of the survivability of what they …

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