101–110 of 258 posts
Correlation versus causation and all that, but an increase in bowel cancers and a decrease in sun exposure are both well documented trends over the last few decades.
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I've had a malignant melanoma, my mother and extended relatives had it as well (including a great uncle I never met who died from it), 4 (of my 9) siblings have had multiple, mostly those of use who have red hair/fair skin. I don't think I've ever heard of a greater risk of skin cancer due to genetics/familial occurrence than I have. After my mother got it and had a huge chunk taken out of her leg when I was very you…
What I've heard is people who don't get sun frequently, are at higher risk of melanoma. Like no sun then sunburn = bad bad
Emphasis on “may” - this is hardly a gold standard study. Living in sunnier/warmer climates as a proxy for UV exposure as opposed to lifestyle differences afforded by such a climate, regional culture differences, etc. makes all of this very dubious to me.
I’m going to keep wearing my sunscreen most of the time when I need to be in direct sun, and continue regular screening for skin cancer.
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It is a big thing in Asia to avoid sunlight to avoid premature aging and tanning. It's an interesting parallel you can observe in parks: in my country in Europe, people will prefer to sit on the benches exposed to the sun first, in China and Korea, people will sit in the shade instead.
Lived in SE Asia fora few years and my understanding is that tan skin = outdoor labor = lower caste. My spouse is asian and I'm N Euro - I would kill to have skin that just tans no matter how much sun you get. I think I've seen her get burns twice in over a decade and we do a lot of beach time.
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There is a lot of weird discussion on English-speaking forums that you should always always wear sunscreen, even if the day is grey, because skin cancer is a constant risk. I do not get if it’s a massive and long-running marketing campaign that has brainwashed the entire population, if it’s because many living in US and UK have a very white skin tone thus burn easily, or what else. Skin cancer is a fact of life, but…
Maybe we're getting more UV now than we evolved with? https://en.wikipedia.org/wiki/Ozone_depletion
Also, Dr. Roger Seheult has some strong opinions on this as well. Considers sun exposure one of the pillars of health and avoiding the sun to be as dangerous as smoking.
dunno man, just had melanoma removed from my ear and if it had moved to my lymph nodes I had a 50% chance of dying within 5 years. thankfully it didn't but it was caused by sun damage incurred in my youth. I'll be wearing sunscreen and mostly avoiding direct sunlight.
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Yeah, I've always found it a very weird and weak argument. There are plenty of things we've evolved with that would be considered pretty bad for us now. For example, we evolved as a polygamous species (like virtually all mammals), meaning harams, lots of sexless males and fighting etc. Also important to remember evolution operates at a population level, not individual. We are descended from females that were able to…
Where do you get the idea that we evolved as a polygamous species? The few remaining hunter-gatherer societies don't work like that. I think that kind of polygamy came with agriculture.
For winter I got a standing tanning machine. Which I use 2-4x a week for 1 minute per use. I calculated this was equivalent to 5-15 minutes outside, depending on time, but engages the entirety of the bodies largest organ. My (anecdotal, subjective) experience is that it helps. Both vitamin D and nitric oxide are good rationales for that. This would be economically impossible at a tanning salon. If you like to be tan,…
I am intrigued -- please can you share any publicly available image of this solution? I'm not sure what to google search, or what it would even look like. But I am interested in feeling better while stuck indoors all day.
I am very white, but getting sun feels very healthy for my skin. Obviously I don't want to get burned bad, but good sun exposure helps my skin feel softer and less inflamed. My grandfather also spent most of his days out in the sun gardening, and my mom was just commenting a few months ago about how surprisingly smooth his skin is (and he's 92).
>good sun exposure helps my skin feel softer and less inflamed. The UV light polymerizes collagen in presence of vitamin B. They did experiments by repairing cornea that way: https://pmc.ncbi.nlm.nih.gov/articles/PMC3018104/ "The aim of this study is to evaluate the safety and effectiveness of riboflavin-ultraviolet type A (UV-A) light rays induced cross-linking of corneal collagen in improving visual acuity and in s…
As a person w/ keratoconus I have read a fair bit about this treatment, corneal collagen crosslinking with riboflavin (C3R).
It does not repair the damage caused by keratoconus. It stabilizes the cornea and slows or halts progression. The collagen in the cornea naturally crosslinks (likely due to UV exposure) over our lives. My our late 30s our corneas are stable. For someone with keratoconus, where the cornea becomes progressively misshapen, stabilizing the tissue with UV (enhanced by riboflavin) slows or prevents further damage.
I was just a few years too early in my diagnosis to benefit from C3R. My eyes have been stable for the last 10 - 12 years. I wish I could have had C3R when my condition was first diagnosed back in my 20s.