Notes for Tuesday, October 19, 2021

Notes and Notes

It’s easy to push interesting ideas and articles into drafts all day long using the share sheet across my Apple products. It’s becoming habit. At the end of the day I end up with a page of collected notes. Just bullet points and links. A quote or two. The process is to sit down for a bit at the end of the day, cllean ’em up and publish the blog.

I’ve adopted some of the Zettelkasten principles in my note taking for specific projects. With back linking being all the rage in the new generation of note taking apps, I think the point is being missed. The power of the Zettelkasten is in the processing of notes and writing higher level summaries that link down to the individual items being considered. And when summarizing items, drawing the link to a similar idea directly. But this is linking with awareness, not creating a rat’s nest of linkage.

Brain

To understand how we decide, it’s necessary to understand how the brain creates feelings about options and the odds of different outcomes. It’s not a rational, algorithmic process, but one driven by imagination and emotion. That emotion is coded in deep parts of the brain known collectively as the limbic system, but areas distinct from those representing sensation, language and action of the cerebral cortex. Feeling, desire, need or more broadly positive or negative valence is evoked by those representations. Our brains get into poorly functioning states like depression, anger and anxiety that can flood all sensation and action, blinding us.

So it was nice to see the Washington Post illustrating the struggle of college students with mental health in the pandemic on their app with a brain.

When I saw mental health represented by a brain not a face or abstraction, it gave me hope the the idea of embodied cognition is catching on in popular conception, with acceptance that our thoughts and emotions are based in physical events in the brain. Mental health is brain health. Healthy mind in a healthy body.


Learn the art of the pleasant but firm rebuke. When, in casual conversation, I hear vaccine or public health misinformation being shared, as a physician I feel obligated to correct it. But its hard to relay to others that this is really important, the science and medicine matter, and that even though we have lots of uncertainty and lots to learn we need to work to separate the honest truth from the tales told to inspire fear.

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