All posts filed under: Health

Beaked Up Birds: A Review of Big Chicken

A Review of Big Chicken by Maryn McKenna. National Geographic (September 12, 2017) 400 pages.   People began cultivating plants and animals on a large scale about 10,000 years ago. Farming created a steady supply of nutrients, and acted as an insurance policy so that our ancestors weren’t constantly beholden to the whims of weather and the migration of animals. Of course, weather also affected crops, and farm animals sometimes escaped their pens or were killed by parasites. But settled agriculture allowed us to spread risk over longer periods of time and across more people. Agriculture brought with it enormous benefits, including a larger trading network, a greater division of labor, and even some genetic changes that we’re better off with than without. But it also exposed us to new risks, including a less diverse source of nutrients, and new pathogens (some of the genetic consequences of agriculture are a product of our new diet and new pathogens: those who didn’t adapt were culled by the invisible hand of natural selection). When we began to domesticate animals, …

Against the Demonization of Drugs

For most of us, the word ‘drugs’ comes burdened with negative associations. Run a quick mental check: how many positive associations come to mind when you think of the term ‘drugs’? However, a ‘drug’ is simply any substance other than food that causes a physiological change when introduced into the body (inhaled, injected, smoked, consumed, absorbed, etc). As such, the term ‘drugs’ is so broad that any sweeping generalization about them is likely to be false. Drugs include a whole spectrum of substances ranging from the highly addictive, such as crack cocaine, to the life saving and pain relieving, such as anaesthetics, to the mind enhancing, such as caffeine, to the purely recreational, such as alcohol. Yet public discourse on the subject is usually limited to the narrow mantra that “drugs are bad.” Where are the people reminding us that “drugs can be good”? There is no doubt that most anti-drug campaigns have good intentions (such as protecting people from addiction), but the simplistic picture they provide makes it difficult to make useful distinctions between …

What is Mindfulness? Nobody Really Knows, and That’s a Problem

You’ve probably heard of mindfulness. These days, it’s everywhere, like many ideas and practices drawn from Buddhist texts that have become part of mainstream Western culture. But a review published in the journal Perspectives on Psychological Science shows the hype is ahead of the evidence. Some reviews of studies on mindfulness suggest it may help with psychological problems such as anxiety, depression, and stress. But it’s not clear what type of mindfulness or meditation we need and for what specific problem. The study, involving a large group of researchers, clinicians and meditators, found a clear-cut definition of mindfulness doesn’t exist. This has potentially serious implications. If vastly different treatments and practices are considered the same, then research evidence for one may be wrongly taken as support for another. At the same time, if we move the goalposts too far or in the wrong direction, we might lose the potential benefits of mindfulness altogether. So, what is mindfulness? Mindfulness receives a bewildering assortment of definitions. Psychologists measure the concept in differing combinations of acceptance, attentiveness, awareness, …

Traditionalists and Activists are Both Wrong About Sex and Gender

Note: I had almost completed writing this essay when I became aware of President Donald Trump’s action to bar transgender individuals from serving in the United States military. This is blatant discrimination against the transgender community. As Sen. John McCain wrote following Trump’s announcement, “Any American who meets current medical and readiness standards should be allowed to continue serving. There is no reason to force service members who are able to fight, train, and deploy to leave the military—regardless of their gender identity. We should all be guided by the principle that any American who wants to serve our country and is able to meet the standards should have the opportunity to do so—and should be treated as the patriots they are.” Wading into the turbulent rapids of the politics of sex, gender, and gender identity requires a life vest. Inevitably, one is bound to upset one or another political current, be it transgender rights or support for traditional gender roles. If I cannot hope to achieve a rapprochement between the two sides, I can …