Gleanings of the Week Ending October 4, 2025
/The items below were ‘the cream’ of the articles and websites I found this past week. Click on the light green text to look at the article.
Why Does the Immune System Struggle When the Weather Changes? - Warmer environments promote better immune responses because less energy is diverted to regulating the body’s temperature. At colder temperatures, more resources are shuttled toward homeostasis, leaving less fuel available for immune cells. The cold temperatures are anti-inflammatory. The immune response just doesn't work as well and, molecularly, the adhesive interactions don't really bind as well. Seasonal shifts also bring changes in humidity and wind, which can affect the skin and mucosal barriers, and in turn, the immune response. Drier conditions can lead to more pathogens or other irritants entering the body, driving inflammatory responses. In contrast, excessive humidity can reduce the evaporation of sweat, thus preventing the body from being able to cool itself. Cold temperatures drive people indoors, where pathogens spread more easily. Meanwhile, warm days draw individuals outside, where people can be exposed to pollutants and allergens, which can render immune responses less prepared to fight actual infections.
Toxic-Free Future 2024 Report Card – How does your grocery store rank?
Your kitchen is full of microplastics. Here's how to eat less of them – Now that I am aware of the microplastic issues…there seem to be a lot of articles on the topic. I liked this one because it pointed to some real research and there were actions one could take to reduce microplastic exposure.
What Are Microplastics Doing to Our Bodies? This Lab Is Racing to Find Out. – This article is from last April, but it provides some information about the type of research that is being conducted…trying to understand the impact of microplastics on our bodies.
Why Alaska’s salmon streams are suddenly bleeding orange - Warming Arctic permafrost is unlocking toxic metals, turning Alaska’s once-clear rivers into orange, acid-laced streams. The shift, eerily like mine pollution but entirely natural, threatens fish, ecosystems, and communities that depend on them—with no way to stop the process once it starts. (Climate change…the US denial of its existence does not stop it.)
Inouye Solar Telescope Captures Most Detailed Images Ever of Powerful Solar Flares - Scientists hope that this new imaging can lead to improvements in solar flare modeling and a better understanding of the magnetic field in the sun’s corona. But even the most casual viewer will find much to enjoy in these photos: deep-red ribbons arch and swirl across a fiery plain, with bright flares peppered throughout.
This EV Sales Chart Really Embarrasses The USA – The US has become the laggard of the world in EV sales. It does not bode well for the future of our country.
Three-Minute Take-Home Test May Identify Symptoms Linked to Alzheimer’s Disease Years Before a Traditional Diagnosis - In 2021, 57 million people across the planet were living with dementia. This class of memory-related diseases is the world’s seventh greatest killer, and Alzheimer’s disease is its most common form. In a study published this month in the journal Brain Communications, researchers say the experimental test, called the Fastball EEG, can detect Alzheimer’s significantly earlier than a traditional clinical diagnosis would. In the study, each participant put on a cap that monitored the brain’s electrical activity as they viewed a series of images on a tablet. Some of the images belonged to a set that participants were shown before the start of the test, while others were entirely new. The Fastball test is just three minutes long and passive, meaning all that is required of the patient is to watch the images—they don’t have to follow instructions or actively remember anything. The results of the at-home test are sent directly to a patient’s doctor. Hopefully - Fastball EEG can one day be used as a screening tool for patients over 55 years old, though more research is needed to identify the best time to take the test.
Harnessing the superpowers of the most resilient life form on Earth - While water bears often must cope with drying out, it's less clear why they would need to survive baking hot temperatures, being cooled to just above absolute zero, or radiation only found in outer space.
The Secrets Behind the Roman Colosseum’s Enduring Engineering - Measuring roughly 615 feet in length, 510 feet in width, and 157 feet in height, the Colosseum was the largest amphitheater anywhere in the Roman Empire. Its capacity rivals that of modern stadiums; it can seat as many as 90,000, on par with London’s Wembley Stadium. Ancient texts and archeological studies both indicate that the construction of the Colosseum, which lasted from 72 to 80 C.E., was a meticulously planned and highly coordinated affair. The Colosseum hosted not only gladiatorial games, but also animal hunts, mock naval battles, public execution of criminals, and theatrical performances. Inside, seating was divided by social class, with the emperor and senators seated in the front rows and the plebeians, or common people, farther back. Although the structure survived the test of time, the Colosseum we know today is but a shadow of its former self. During the Early Middle Ages, following the fall of the Western Empire, almost all its moveable interior furnishings, including statues, wooden scaffolding, and marble seats, were removed and sold—an unceremonious end to a monumental history.
