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#cold

2 posts2 participants0 posts today
Public
michael

23-Apr-2025
Remembering the cold: scientists discover how #memories control #metabolism

New multidisciplinary research led by Tomás Ryan from Trinity College Dublin shows that the brain forms memories of cold experiences and uses them to control our metabolism. This newly published study is the first to show that #cold memories form in the #brain – and map out how they subsequently drive #thermoregulation.

eurekalert.org/news-releases/1 #science

EurekAlert!Remembering the cold: scientists discover how memories control metabolismNew multidisciplinary research led by Prof. Tomás Ryan from Trinity College Dublin shows that the brain forms memories of cold experiences and uses them to control our metabolism. This newly published study is the first to show that cold memories form in the brain – and map out how they subsequently drive thermoregulation. The discovery may have important applications in therapies designed to treat a range of disorders – from obesity to cancer – in which thermoregulation and metabolism (or a lack of control in this area) plays a role, as well as opening the door to more fundamental research, which could help us better understand how memories impact our behaviour and emotions.
Public
Spectrum Imagery
▴ Niagara Falls

This is quite an old photo from a trip to Canada, visiting an old friend from my time studying abroad. It took a bit of convincing to get him out into the icy cold that morning — but with the faint glow of sunrise in the distance and the mist rolling off the falls in the foreground, it turned out to be one of my favorite shots. (Not sure my friend would say the same, though)

#waterfall #sunrise #mist #winter #cold #longexposure #landscape #nature #goexplore #photography #landscapephotography #naturephotography #niagarafalls #toronto #canada
View from the edge of Horseshoe Falls at Niagara, where the water plunges into the mist on a cold winter morning with a soft sunrise glow on the horizon.
#canada
Public
Dag-Rune Z
Driving in the mountain wonderland

Yeah, mountains are part of driving longer stretches in Norway. You can take the long road following the coastline or cross over the mountains.
In late winter, in April and with good weather, the mountains are fastest. And prettiest.
Of course, snow removal when the snow layer is 2 meters thick or more means you must stop your car and climb up to get a view of the mountains. Or have a look down at the main road on the right here.
You do not stay there long. When the base temperature is minus 22 degrees Centigrade, any windy breeze makes the real temperature even colder.
The heaters in the cars sold here is made to handle it. I remember one time my first car, a Datsun, had a car heater that nearly did not. It was December, and minus 34 degrees outside.
Going outside when it is that cold, every nerve in your skin and breathing system cries out: "Seriously?" "This is not real!" "Get inside, you maniac" "Cold. So cold. Freezing cold. Unbelievable cold!"
Hot food and coffee never taste better than after a walk in the cold. Even a short one.
But it is worth visit Norwegian mountains under snow.

https://youtube.com/watch?v=_6I7GfDCaHE&feature=shares

#snow #roads #deepsnow #roads #mountains #mountainplateau #bluesky #snowpassage #freezing #cold #minus22degrees #cardrive #roadtrip #strynefjellet #norway #arctic #april #early #spring
Photo shows a winter mountain landscape. Under a clear blue sky most of the photo is a flat landscape covered under snow. To the left is a small range of sharp jittered mountains partly covered by snow. To the right a deep rift in the snowy landscape shows the main road some meters down with snow walls on both sides.
#spring
Public
RDN

A very small study (10 individuals) found that 7 days of 1-hour ice baths was associated with lower programmed cell death (apoptosis) and greater cleanup of cellular waste (autophagy).

Summary: uottawa.ca/about-us/news-all/c

Original paper: advanced.onlinelibrary.wiley.c

About usCold plunges actually change your cells, uOttawa study finds | About usA new study conducted at the Human and Environmental Physiology Research lab (HEPRU) at the University of Ottawa has unveiled significant findings on the effects of cold water acclimation on autophagic (the cells’ recycling system, which promotes cellular health) and apoptotic (the programmed cell death that gets rid of damaged cells) responses in young males. The research highlights the potential for cold exposure to enhance cellular resilience against stress.The study, conducted by Kelli King, postdoctoral fellow, and Glen Kenny, Full Professor at uOttawa’s School of Human Kinetics and Director of HEPRU, involved ten healthy young males who underwent cold-water immersion at 14°C (57.2°F) for one hour across seven consecutive days. Blood samples were collected to analyze the participants' cellular responses before and after the acclimation period.“Our findings indicate that repeated cold exposure significantly improves autophagic function, a critical cellular protective mechanism,” says Professor Kenny. “This enhancement allows cells to better manage stress and could have important implications for health and longevity.”
#Science#Health#Cold
Public
Chrissy

After a horrendous couple of months at work I finally have a day off. Have been looking forward to it all week, planning the perfect day-long hike, getting excited about starting another thru hike I can do in stages. Unfortunately yesterday I got a sore throat and today it has developed into a nasty cold so instead I will be forced to spend today in bed and on the couch. I’m very grumpy right now.
#cold #hiking #walking

Public
Niamh Bernadette (They/Them)
Off You Go / Via, Si Parte
#spookysaturday

3:00 am. Nobody is around to pick you up and drop you home. There is only one very dimly lit path that can take you there. The mist makes the icy air damp and makes it harder to see what is ahead of you. Is that a person on the path? No, it must be like a sign or something, right? What if it is a person? You need to get home - but will you be going there alone? Will you be going there at all?

#photography #amateurphotography #spookysaturday #creepypasta #spooky #creepy #eerie #dark #moody #horror #trees #path #light #italy #italia #pianurapadana #ferrara #cold #alberi #sentiero #spookyvibes #scary #night #alone #nightmare #europe #story #scarystories
Public
Joan Carroll

The majestic Perito Moreno Glacier extends into Argentino Lake, surrounded by rugged snow-capped mountains and endless forests and trees. It is a combination of a harsh, cold environment softened by a cluster of flowering trees in the foreground.

#glacier #argentina #patagonia #mountains #snowcapped #landscape #landscapephotography #icebergs #losglaciares #worldheritage #unesco #cold #rugged #AYearForArt #buyIntoArt #giftideas #wallart #artforsale @joancarroll

joan-carroll.pixels.com/featur

The majestic Perito Moreno Glacier extends into Argentino Lake, surrounded by rugged snow-capped mountains and endless forests and trees. It is a combination of a harsh, cold environment softened by a cluster of flowering trees in the foreground. #glacier #argentina #patagonia #mountains #snowcapped #landscape #landscapephotography #icebergs #losglaciares #worldheritage #unesco #cold #rugged #AYearForArt #buyIntoArt #giftideas #wallart #artforsale @joancarroll https://joan-carroll.pixels.com/featured/perito-moreno-glacier-argentina-2-joan-carroll.html
Public
Y⃒̸̷̝̜̙ͥͥͥngmar

Apparently steel gets brittle from cold at much higher temperatures than I previously thought. It was maybe -12°C when I broke several bits (from different sets/makes) in a row before giving up. Some of these had driven hundreds of screws before, so they weren't made of cheese.

Ants Pants mentioned this in a video and I didn't believe it because I thought cold embrittlement wasn't a thing until -70°C or thereabouts. 🤷

An impact driver bit with the tip broken off and some dirt on it being held in a gloved hand. It's labeled PZ2.
#Steel#Metal#Tools
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