Gleanings of the Week Ending November 8, 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.

Childhood Exposure to Plastic Raises Lifetime Health Risks - Scientists analyzed decades of research into the impact on pregnant mothers, fetuses, and children of three chemical additives — phthalates, bisphenols, and perfluoroalkyl substances — that make plastic more flexible, more rigid, or more resistant to heat or water. Early exposure to these chemicals can leave children at greater risk of heart disease, obesity, infertility, and asthma well into adolescence and adulthood. Plastic additives are also believed to affect the development of the brain, with studies linking the chemicals to lower IQ, ADHD, and autism. The widespread use of plastic is exacting a deepening toll, with Americans paying an estimated $250 billion yearly to treat ailments linked to plastic.

Scientists Resurrect 40,000-Year-Old Microbes from Alaskan Permafrost. What They Found Raised Worries About the Future of a Warming Arctic - Roughly 40,000 years ago, microbes went dormant in a rock-like layer of frozen soil near the future site of Fairbanks, Alaska. Now, researchers have successfully “reawakened” the tiny creatures, raising concerns about how those microbes could increase greenhouse gas emissions in a warming Arctic.

The Butterflies of Marinduque: Small Wings, Big Changes - Marinduque supplies about 85% of the Philippine’s butterfly pupae exports. Beyond trade, butterflies have become symbols of livelihood, culture, and conservation for the island.

A simple fatty acid could restore failing vision - Retinal polyunsaturated fatty acid supplementation reverses aging-related vision decline in mice….and systemic lipid supplementation could potentially counteract the effects of age on the immune system. But will in work in humans…that’s still TBD.

Is it possible to lose weight on an 'Ozempic' diet? – Study findings suggest that there's some kind of mechanism we can tap into to restore healthy eating without drugs by limiting the sense of reward and achieving a sense of satisfaction without overeating.

This Chilling Recording Reveals Large Bats Catching, Killing and Eating Birds Midflight – How the greater noctule bat, the largest bat species in Europe, catches and eats its prey.

Fentanyl overdoses among seniors surge 9,000% — A hidden crisis few saw coming - Fatal overdoses among adults 65 and older involving fentanyl mixed with stimulants such as cocaine and methamphetamines have risen dramatically, climbing 9,000% in the past eight years. The rate now mirrors that seen in younger adults. The rise in fentanyl deaths involving stimulants in older adults began to sharply rise in 2020, while deaths linked to other substances stayed the same or declined. Cocaine and methamphetamines were the most common stimulants paired with fentanyl among the older adults studied, surpassing alcohol, heroin, and benzodiazepines such as Xanax and Valium.

Billions of bacteria lurk in your shower, just waiting to spray you in the face - should you be worried? - For most people the risk of catching a bug from your shower head is low, particularly if you are using it frequently. Running the shower for 60-90 seconds, allowing it warm up before stepping under the spray, also means it is also doing some useful work in that time, flushing out many of the microbes. This is particularly advisable after a holiday or any long gap between using the shower. Regular cleaning by running very hot water through the shower, along with descaling your shower head or soaking it in lemon juice can help to disrupt the microbes living there and control the size of biofilms.

Dolphins may be getting Alzheimer’s from toxic ocean blooms - Dolphins washing up on Florida’s shores may be victims of the same kind of brain degeneration seen in humans with Alzheimer’s disease. Researchers discovered that cyanobacterial toxins—worsened by climate change and nutrient pollution—accumulate in marine food chains, damaging dolphin brains with misfolded proteins and Alzheimer’s-like pathology. Since dolphins are considered environmental sentinels for toxic exposures in marine environments there are concerns about human health issues associated with cyanobacterial blooms. In 2024, Miami Dade County had the highest prevalence of Alzheimer's disease in the United States.

Nigeria, a Major Oil Producer, Sees Beginnings of a Solar Boom - For Nigerians, the cost savings from ditching diesel mean that a solar panel pays for itself within six months. Homeowners who can afford the up-front costs are installing rooftop solar in large numbers, while some villages are setting up community solar and battery projects. Solar is making huge gains in Nigeria, with imports of Chinese solar panels growing by two-thirds between June 2024 and June 2025. n Pakistan, high fuel prices, a byproduct of the Ukraine war and the loss of a fuel subsidy, have spurred the mass adoption of solar.

Stunning Microscope Videos Highlight Self-Pollination, Algae and Tumor Cells in the Nikon Small World in Motion Contest – The first and fifth were my favorites of these short videos.

Then and Now – Eye Care

My third-grade teacher was the person that realized I needed glasses – when I couldn’t ever get the right answer during multiplication flashcard drills! That was in the mid-1960s. I remember my first frames were white plastic with tiny pink dots and the lenses were easily scratched. Later in the decade I was wearing rigid contact lenses (soft ones did not exist yet); they provided the best correction for me because they corrected astigmatism perfectly with their rigid surface. In the later 1970s I switched to soft contacts for comfort…but they were never as perfect as the rigid lenses.

These days I am wearing glasses except for close work. For photography – I often look over my glasses to the camera’s screen! I have two pair: single vision computer glasses and progressives with magnetically attached tinted lenses. Doing most of my reading on screens is easier for me than paper-based materials; the brightness of the screens is helpful.

At some point I will need cataract surgery. My dad had his cataract surgery in his mid-70s, but my mother didn’t need it until her 80s. One of my younger sisters had it recently so I know what to expect…however my eye doctor can still correct my vision to 20/20 with glasses so it might not be that soon. Whenever I have it – I hope to enjoy at least some years without having to wear glasses or contacts (except sunglasses); it will be a welcome break after 60+ years.

Previous Then and Now posts

Gleanings of the Week Ending February 10, 2024

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.

Sleep tight: A curious history of beds through the centuries – From 4,500 year old ‘beds’ at Skara Brae (Scottish island of Orkney…rectangular enclosures, around the length of a human…made from slabs of cold, hard stone…with tall headboards and raised sides) to Durrington Walls near Stonehenge (spectral outlines of long-vanished wooden bed boxes, where the builders of that monument may have once slept) to a clay figurine of a woman slumbering peacefully on her side, one hand under her head, on a simple raised platform to the gilded wooden bed in King Tut’s tomb (including a rigid, raised headrest rather than a soft pillow) to mats of dried leaves or animal skins to box beds to the ‘tick mattress’…hints of beds of the past.

Peru’s High-Altitude Hunter-Gatherers Ate Mostly Plants – Wild potatoes and the root vegetables made up 80% of their diet.

Rethinking Monarchs: Does the Beloved Butterfly Need Our Help? - The Xerces Society has published a joint statement signed by 10 top monarch biologists warning against the captive rearing and releasing of monarchs by backyard and commercial breeders. Such activities, they wrote, “promote crowding and disease spread.” The monarch is not in peril since the winter population in Mexico has shown no continued decline for the past 10 years. --- But there are some that still argue for continued ‘help.’

Deceptively Beautiful Invasive Plants – Avoid Lessor Celadine, Mimosa Tree, English Ivy…..Today, we have the opportunity to make gardening choices that benefit both the aesthetics of our gardens and local wildlife by removing invasive species and replacing them with beautiful and wildlife-friendly native alternatives. 

See the World Through the Eyes of Animals with These Stunning New Videos - To “see through” animal eyes, the team uses two cameras—one sensitive to ultraviolet light and one sensitive to visible light. Together, they capture light in four distinct wavelengths: blue, green, red and ultraviolet.

New genetic variants found in large Chinese mother–baby study - Mothers with higher blood pressure give birth to lighter and shorter babies than do mothers with lower blood pressure. This was just one of a multitude of links between maternal health and fetal development observed in a large genetic analysis of Chinese parents and their babies, which included some unexpected results. The researchers sequenced genetic data from blood samples taken from the parents and umbilical-cord blood of the infants and collected physical information about the mothers and their babies, including height and weight. The researchers identified discrepancies in the effect of some genetic variants on the same trait between mothers and their babies. For example, some variants were associated with altered cholesterol levels in infants but not in their mothers, and vice versa.

Preserving History at Bandelier National Monument – Two videos that show recreations of what the structures looked like in use based on archeological findings.

The 4-Second Nap: Unusual Sleep Habits of Animals - The killer whale, which can go a month or more without sleeping. Or the chinstrap penguin, which researchers recently discovered sleeps in four-second microbursts. Compare that to the koala, which conks out for most of the day.  When dolphins are sleeping with one hemisphere, one eye closes and one remains open. They sometimes rest motionless near the surface of the water or swim slowly, still able to breathe when needed. African elephants sleep for the least amount of time recorded of any land mammal.  The domestic horse sleeps just under three hours on average each day, and the domestic pony sleeps about three hours and 20 minutes. 

How a walk in nature restores attention - The study, conducted in 2022 between April and October, analyzed EEG data recorded on each of 92 participants immediately before and after they undertook a 40-minute walk. Half walked through Red Butte, the arboretum in the foothills just east of the University of Utah, and half through the nearby asphalt-laden medical campus. The participants that had walked in nature showed an improvement in their executive attention, whereas the urban walkers did not.

Climate change is causing a pothole plague. Are robots and self-healing pavement the solution? - In the United States, about 44 million drivers reported damage to their vehicles from potholes in 2022, which was a massive 57% increase over 2021, according to AAA. New developments offer hope for addressing potholes more effectively amid climate change, and are attracting investors….but innovations take time to be implemented.

Gleanings of the Week Ending November 12, 2022

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.

America’s largest transit bus charging station & microgrid open in Maryland – The headline caught my eye because I lived in Maryland for over 20 years – 8 of those in the county where this is happening! I hope other states have the same sorts of projects in the works.

NASA Finds More Than 50 Super-Emitters of Methane – Finding them is only the first step….how many of them will be situations we can reduce or stop the emission?

Iron induces chronic heart failure in half of heart attack survivors – This study prompted testing of iron chelation therapy to remedy or mitigate the effects associated with iron in hemorrhagic myocardial infarction patients.

Unique Bronze Age belt discovered near Opava – Half my ancestors came from the area that is now the Czech Republic…I am drawn to articles about the history of the region.  The belt is quite beautiful…but was it a practical item of apparel?  

What happens if our circadian rhythms are out of whack? – WHO has proclaimed that disrupted circadian rhythms are a probable carcinogen. The study discussed in this post was about the mechanism that circadian rhythm disruption triggers lung tumors.

View 16 Breathtaking Images from the Nature Conservancy’s Annual Photo Contest – Take a little break….look at awesome images of our world.

Mississippi River Basin adapts as climate change brings extreme rain and flooding – This year the stories about extreme weather seem to be more frequent – and wide ranging in terms of water. The Mississippi was low enough for barge traffic to be impacted because of drought…yet there were floods along part of the river just last summer.

Eye-opening discovery about adult brain's ability to recover vision – An unexpected success…opening new ways to treat a vision impairment (LCA) and maybe prompt a re-look about how the adult brain can re-wire itself relative to vision.

The World’s Whitest Paint May Soon Help Cool Airplanes and Spacecraft – A way of making paint that was previously too thick/heavy for things that move. The thicker version works for homes and buildings. We’ll need this technology to reflect heat without expending energy!

Greater cloud cover may be narrowing the gap between daily high and low temperatures – Simulating clouds explicitly. Trying to understand why nights are heating up faster than days across the globe.