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Skin health can be used to predict a number of seemingly unconnected factors

bbc.com

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Re: Skin health can be used to predict a number of seemingly unconnected factors

#41

Post by epage »

lotsofpulp wrote: post #19
galleywest200 wrote: post #18

Earlier quoted context omitted.

- easier to use less water, in part because it's so easy to get out of the shower into a warmer environment In the peak of summer temperatures (especially this year), this is not exactly true.

I assume the vast majority of HN readers live in climate controlled residences where the temperature inside the residence and bathroom is more than the temperature of cold water, even in peak summer.

Living in Texas, my cold showers during the summer feel amazing after a run ... for how cold they can actually get. I can stand in them indefinitely.

Re: Skin health can be used to predict a number of seemingly unconnected factors

#42

Post by r00fus »

epage wrote: post #41
lotsofpulp wrote: post #19

Earlier quoted context omitted.

I assume the vast majority of HN readers live in climate controlled residences where the temperature inside the residence and bathroom is more than the temperature of cold water, even in peak summer.

Living in Texas, my cold showers during the summer feel amazing after a run ... for how cold they can actually get. I can stand in them indefinitely.

After 1hr+ of intense biking, I am in the same boat - body is so heated from the ride (often in the morning when it's cold so my extremities are quite cold) that hot water feels scalding, cold water feels really nice.

Re: Skin health can be used to predict a number of seemingly unconnected factors

#43

Post by Izikiel43 »

vosper wrote: post #22
meristohm wrote: post #6

In late 2020 I committed to only taking cold showers. I note several upsides after nearly three years of this: - easier to forego caffeine, as cold water in the morning leaves me wide awake - easier to use less water, in part because it's so easy to get out of the shower into a warmer environment - mental health benefits, including increased confidence dealing with things I don't want to do but which are my adult dut…

Did you consider a hot-then-cold shower? After listening to a Huberman Lab episode on deliberate cold exposure I've started doing 2-3 minutes of cold at the end of my hot shower. Obviously it doesn't save on energy, but I definitely get the "wide awake" feeling you describe. And I get to enjoy a nice hot shower, too :) Here's a write-up on deliberate cold exposure by Dr Huberman for anyone interested: https://huberma…

Hot tub in the gym then cold pool ftw

Re: Skin health can be used to predict a number of seemingly unconnected factors

#44

Post by cstejerean »

symbolicAGI wrote: post #12
Fricken wrote: post #8

I like to try and guess people's ages. In real life, or on video, where their personalities influence my guess, I'm much worse than when looking at a still image. With a still image often the quality of a person's skin is the only giveaway, and when that is the case I'm remarkably accurate most of the time. So I'm skeptical there's much one can do, and people's skin seems to age at roughly the same rate.

Easiest way to guess a person's age is by the relative size of the ears, that never stop growing. Tiny ears - teenager. Huge ears - senior. https://pubmed.ncbi.nlm.nih.gov/18653105/

The linked study doesn't seem to support that "ears never stop growing" at least in the typical way one would read that sentence.

> This study supports the view that as people age, their ears get larger, particularly the ear circumference, which increases on average 0.51 mm per year. This enlargement is likely associated with aging changes of collagen

So they do get larger with age but not due to growing, but rather the typical aging of the skin + gravity tends to result in the ears enlarging in diameter.

Re: Skin health can be used to predict a number of seemingly unconnected factors

#45

Post by 11235813213455 »

robert2020 wrote: post #7

I always assumed moisturizer was mostly a cosmetic benefit, maybe feels a little better or prevents cracking in super dry weather.

What protects skin is more food and outdoor activity, for example tomatoes against sun burns, other vegetable as raw and ripe as possible, etc..

Cosmetic products are just business

Re: Skin health can be used to predict a number of seemingly unconnected factors

#46

Post by nicup12345689 »

pessimizer wrote: post #38
gumby wrote: post #31

Folk history judges people by the quality of their skin (to the dismay of adolescents in particular). You see it in hollywood and in literature: the hero has clear skin while the villain is surprisingly often described as being disfigured. This could stem from a long practice of disease avoidance before modern medicine, even when no disease is relevant (a birthmark, recovered from smallpox, etc). Years ago I worked i…

https://www.skinema.com/ > "Beauty equals good" is an age-old trope in entertainment, points out Doris Bazzini, a professor of social psychology at Appalachian State University. In a 1999 study she co-authored, a panel watched 20 of the top-grossing movies in each decade from 1940 to 1989, rating characters by attractiveness and other traits. They found that the stereotype held true across all decades and genres. She…

You can find reference to this in Chaucer. It's very very old = Homo sapiens

Re: Skin health can be used to predict a number of seemingly unconnected factors

#47

Post by nicup12345689 »

landemva wrote: post #36
manmal wrote: post #24

I’ve been applying DIY 20% ascorbic acid solution on my face for a few weeks, and am seeing some benefits already. Photoaging and spots seem to revert a bit, and there is definitely some lightening (as expected [1]). According to some Reddit posts, it takes a few months until the improved collagen synthesis becomes noticeable. Vitamin C serums are quite expensive because ascorbic acid oxidizes quickly, and other form…

Interesting, though why would a person want to do this skin depigmentation? Is it like people dying their hair color?

Lookup lipofuscin, many spots are made of it. Goes beyond aesthetics

Re: Skin health can be used to predict a number of seemingly unconnected factors

#48

Post by masfuerte »

pessimizer wrote: post #38
gumby wrote: post #31

Folk history judges people by the quality of their skin (to the dismay of adolescents in particular). You see it in hollywood and in literature: the hero has clear skin while the villain is surprisingly often described as being disfigured. This could stem from a long practice of disease avoidance before modern medicine, even when no disease is relevant (a birthmark, recovered from smallpox, etc). Years ago I worked i…

https://www.skinema.com/ > "Beauty equals good" is an age-old trope in entertainment, points out Doris Bazzini, a professor of social psychology at Appalachian State University. In a 1999 study she co-authored, a panel watched 20 of the top-grossing movies in each decade from 1940 to 1989, rating characters by attractiveness and other traits. They found that the stereotype held true across all decades and genres. She…

It's always tempting to impute / unlikely virtues to the cute

Re: Skin health can be used to predict a number of seemingly unconnected factors

#50

Post by refurb »

gumby wrote: post #28

The photo at the top is most likely a smoker. Increased CO in your bloodstream, and the effect of nicotine, seems to kill capillary circulation in the skin (and likely elsewhere, including the brain, kidneys). One reason folks in their 40s-60s today look so much younger than people the same age from the 80s and before is likely from the reduced prevalence of smoking. And the article mentions diabetes...which also dam…

And the article mentions diabetes...which also damages the microvascularization though not to the same extent.

That claim isn’t backed by empirical evidence.

It’s very common for diabetics to have chronic skin ulcers and amputations, but smokers do not.

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