this post was submitted on 17 Jan 2025
78 points (98.8% liked)

furry_irl

1217 readers
178 users here now

for the fur in u

place for shitposting and furry memes

follow pawb.social's guidelines

founded 2 years ago
MODERATORS
liam@pawb.social
Foxfire@pawb.social
78
Cold_irl (Art by GlassShine) (medias.meow.social)
submitted 2 weeks ago by ThefuzzyFurryComrade@pawb.social to c/furry_irl@pawb.social
10 comments fedilink hide all child comments
 

Source (Mastadon)

As a Canadian, I relate to the one in shorts.

you are viewing a single comment's thread
view the rest of the comments
[–] OmegaMouse@pawb.social 2 points 2 weeks ago (1 children)

Hehe you're probably right though! I don't have much in the way of fat reserves :'3

[–] ThefuzzyFurryComrade@pawb.social 2 points 2 weeks ago (1 children)

Brown fat is different from white fat as while white fat is good for insulation, brown fat actually produces a massive amount of heat.

[–] OmegaMouse@pawb.social 1 points 2 weeks ago (1 children)

How I do get more? :o

[–] ThefuzzyFurryComrade@pawb.social 2 points 2 weeks ago

When unacclimatized animals are placed in a cold environment, they will acutely defend their body temperature by means of shivering thermogenesis (muscle contractions), which increases heat production (energy expenditure). However, upon prolonged cold exposure, shivering will gradually decrease, but energy expenditure remains elevated, indicating increased NST

Interestingly, an older study in humans already showed that prolonged cold exposure (12°C, 8 h/d, 31 days) in healthy men also resulted in a gradual decrease of shivering, while heat production remained elevated (11).

Before cold acclimation, 94% (16 out of 17) of the subjects showed cold-activated BAT depots, and after cold acclimation, 100% BAT prevalence was observed. Cold acclimation increased upper body BAT activity from 2.4 ± 0.7 to 2.8 ± 0.5 SUV mean (P < 0.01) and detectable BAT volume expanded from 665 ± 451 cc before to 913 ± 458 cc (P < 0.01) afterwards. Analysis of dynamic PET/CT imaging of the supraclavicular region revealed that upon cold acclimation, glucose uptake rate did not increase significantly (6.9 ± 3.0 vs. 7.6 ± 2.5 μmol/min/100 g; P > 0.05).

Or in normal people speak: People who were exposed to the cold got more brown fat.

Study