Tootfinder

Widespread influence of artificial light at night on ecosystem metabolism: #LightPollution

Study Finds 40% of fMRI Brain Scans Misread Neural Activity
https://ground.news/article/study-finds-40-of-fmri-brain-scans-misread-neural-activity_7aa5a7

Many thanks to the potato industry for funding this literature review which shows athletes need carbs after intense exercise!
"Fundamentals of glycogen metabolism for coaches and athletes"
https://pmc.ncbi.nlm.nih.gov/articles/PMC6019055/
No but seriously, i…

Fundamentals of glycogen metabolism for coaches and athletes
The ability of athletes to train day after day depends in large part on adequate restoration of muscle glycogen stores, a process that requires the consumption of sufficient dietary carbohydrates and ample time. Providing effective guidance to ...

💫 Scientists discover how nanoplastics disrupt brain energy metabolism
#brain

Scientists discover how nanoplastics disrupt brain energy metabolism
Scientists from the Trinity Biomedical Sciences Institute (TBSI) have discovered how nanoplastics—even smaller than microplastics—disrupt energy metabolism in brain cells. Their findings may have implications for better understanding neurodegenerative diseases characterized by declining neurological or brain function, and even shed new light on issues with learning and memory.

They have a great “big” point here about incrementalism but also: fiber, water, and even minimal activity specifically are great first steps towards feeling better.
I suspect that a lot of us 1st-worlders feel lousy in part because we’re each paving our own way to T2D, colon cancer, and heart disease. @…

Allometric scaling of brain activity explained by avalanche criticality
Tiago S. A. N. Sim\~oes, Jos\'e S. Andrade Jr., Hans J. Herrmann, Stefano Zapperi, Lucilla de Arcangelis
https://arxiv.org/abs/2512.10834 https://arxiv.org/pdf/2512.10834 https://arxiv.org/html/2512.10834
arXiv:2512.10834v1 Announce Type: new
Abstract: Allometric scaling laws, such as Kleiber's law for metabolic rate, highlight how efficiency emerges with size across living systems. The brain, with its characteristic sublinear scaling of activity, has long posed a puzzle: why do larger brains operate with disproportionately lower firing rates? Here we show that this economy of scale is a universal outcome of avalanche dynamics. We derive analytical scaling laws directly from avalanche statistics, establishing that any system governed by critical avalanches must exhibit sublinear activity-size relations. This theoretical prediction is then verified in integrate-and-fire neuronal networks at criticality and in classical self-organized criticality models, demonstrating that the effect is not model-specific but generic. The predicted exponents align with experimental observations across mammal species, bridging dynamical criticality with the allometry of brain metabolism. Our results reveal avalanche criticality as a fundamental mechanism underlying Kleiber-like scaling in the brain.
toXiv_bot_toot

Totally normal problems.
So one day I had trouble zipping my winter jacket; around the final teeth, the zipper would stop catching. And when I tried again, I couldn't zip anything at all. Finally, at nth careful attempt it finally worked, and I had no more trouble that day. When I've turned, we looked at it, and decided that a loose thread must have gotten into it while zipping. Cut the thread off.
Next day, the zipper worked just fine in the morning. However, when I was about to leave the train, it suddenly stopped working. It seemed that I'm up for a cold day in unzipped jacket, but it finally caught a few minutes later, on the road. This time, I suspected the zipper. Tightened it, it started working again.
Today, I've tried zipping it three times to make sure it really works. And of course, as soon as I arrived at the destination, it refused to zip. I've tried again while walking, and it fell apart completely. Fortunately, the wind stopped blowing, and walking on snow was hard enough to jumpstart my metabolism fast. Finally, I've replaced the zipper and now everything works.
I wonder what tomorrow holds…

The Real Weight Loss Coach
I'm Matty Lansdown – scientist, nutritionist, and emotional eating specialist, here to help you lose weight naturally, stop emotional eating, heal your metabolism, and fix your relationship with food…
Great Australian Pods Podcast Directory: https://www.greataustral…

💦 Sperm microRNAs may enable transmission of exercise benefits from fathers to children
https://medicalxpress.com/news/2025-10-sperm-micrornas-enable-transmission-benefits.html

Sperm microRNAs may enable transmission of exercise benefits from fathers to children
In a recent study published in Cell Metabolism, a research paper provides the first evidence that sperm microRNAs act as carriers of epigenetic information, enabling the intergenerational transmission of paternal exercise capacity and metabolic health, thereby exerting profound effects on offspring development.

Did you do the daily "brrrr" and "sesesese" rituals?
My body detects low temperatures pretty fast. Even though I'm running #winter mode (gloves, hands inside sleeves, lots of glycerin-free hand cream), my hands look like they were hit by shrapnel.
I don't even switch to sandals on full metabolism now.

My body be like: I'm walking for about 90 minutes, then the Metabolism kicks in and I'm heating like crazy.
If I stop moving, it takes around 30 minutes for things to reset.
If I start moving again in a short time (so far confirmed with a 90 minute delay), it kicks in again after 15 minutes.