Do coffee, garlic, or hot peppers kill friendly gut bacteria?

The short answer is no. Although nearly all plants contain antimicrobial compounds, these compounds are present only at low concentrations. Diet certainly influences microbiome composition. But this influence works through the availability of foods that different bacteria prefer. “Food antibiotics” are not a thing. Sloppy health journalists are responsible for the confusion. They often call Read More …

Is there still room for amateurs in science?

Until the end of the 19th century, nearly all science was done by amateurs. The first modern research university was Johns Hopkins, founded in 1876. Up until that time, universities were vehicles for transmitting established knowledge – divinely revealed wisdom at first, the humanistic classics later. They were not seen as engines for creating and Read More …

Joshua Tree – down Pushawalla Canyon to the oasis and exit

It rained a good deal of last night but was not windy or cold, so not so bad.  My route left Pushawalla Canyon and its hiking corridor and headed west cross country along the face of the Little San Bernardino mountains. Although rain threatened early, the skies began to clear and the weather was fine Read More …

Joshua Tree – Covington Flats to Ryan Mountain

I was a bit slow getting up and out of my cold and soggy camp this morning. It’s remarkable just how wet it got, heavy dewfall is not something one often encounters in the desert. Especially when the ground is dry. It must have been the clear skies and subsequent rapid drop in temperature that Read More …

Winter hike in Joshua Tree – Black Rock to Covington Flats

The dwindling daylight of winter got me thinking about hiking the desert again: somewhere warm, or at least warm enough that I could light out on a trail and stretch my legs and not have to strap anything on my feet in order to move across the landscape. Not that backcountry skiing is so bad, Read More …