7 ms·

And yet lots of dermatologists will tell you to avoid sunlight. The medical community is full of contradictions.

by BiteCode_dev 4y ago

herodoturtle 4y ago
Everything in moderation. EDIT: Except lava.
- BiteCode_dev 4y ago
  At first I read "except Java"
  - blep_ 4y ago
    Lowercase L looks like capital i in some fonts. Clearly it's Iava, the Latin word for Java. Quidquid Iava quondam scribum, omni currum, sed delenda est.
    - gjm11 4y ago
      sed delenda est? sed sed editor consuetus textorum est!
  - _Algernon_ 4y ago
    Still true
- coding123 4y ago
  The floor might be lava.
2muchcoffeeman 4y ago
Until recently not going out much wasn’t a big factor. I’ve been feeling sicker than usual lately. Stupid amount of rain in NSW. Went out yesterday morning on a bright sunny day and suddenly I felt much better.
phkahler 4y ago
>> The medical community is full of contradictions. We added iodine to salt to prevent deficiency, then decades later told everyone to avoid salt. I've found iodine to be a huge piece of the puzzle - certainly not a panacea but one of several go to solutions.
- alwillis 4y ago
  The American Heart Association recommends no more than 1500 milligrams of sodium per day. Because sodium is being added to packaged and processed foods, the average American was getting way more sodium than the recommended amount. And given the number of obese people and those with hypertension who are salt-sensitive, lots of people were getting way more sodium than was healthy for them.
  - deleted 4y ago
    [deleted]
  - slaymaker1907 4y ago
    There's also ample evidence that 1500mg is too low. https://www.webmd.com/food-recipes/news/20140402/cdc-salt-guidelines-too-low-for-good-health-study-suggests#:~:text=The%20CDC%20stands%20by%20its,50%2C%20an%20agency%20representative%20said https://www.webmd.com/food-recipes/news/20140402/cdc-salt-gu.... Unlike white sugar which seems to be bad for humans in nearly any amount, salt is an essential nutrient. I suspect it was so demonized as an attempt to deflect blame off of other food additives such as sugar. Low sodium diets may make sense for people with high blood pressure, but it isn't something that everybody should be doing. It seems grossly irresponsible to only highlight the dangers of high sodium while ignoring the dangers of low sodium diets.
    - canucker2016 4y ago
      It's not the total amount of sodium but the concentration of the dose of sodium which will affect your blood pressure. see https://www.youtube.com/watch?v=LbSic4Oo8ME&t=420s https://www.youtube.com/watch?v=LbSic4Oo8ME&t=420s So if your food tastes salty, you should drink more water to dilute the concentration (and hopefully you won't drink so much water to induce hyponatremia - it's a balancing act).
phs318u 4y ago
> The medical community is full of contradictions. Looking after our physical and mental health via modulation of multitudes of interrelated bodily systems and their unique chemistry and biology is a massive multivariate optimisation problem. However, there are reasonable heuristics we can use as a guide for better outcomes, for example, "spend more time in nature" - it's probably no coincidence that doing so is reasonably good for us given we've effectively evolved over many millenia to make the most of "being in nature".
refurb 4y ago
Human biology is made up a number of interacting systems, negative and positive feedback loops and other biochemical pathways. If you focus on individual mechanisms, it looks like contradictions, but as a whole it makes sense. Sunlight is beneficial for vitamin D production, but harmful when it comes to UV damage. Both can be true and not contradictory.
- 7952 4y ago
  And in terms of evolution it makes sense. A lack of vitamin d early in life could effect reproductive success. Skin cancer in your fifties not so much. There just isn't selective pressure.
  - refurb 4y ago
    Another factor to layer on as well! As humans developed, evolution didn't have to create the optimal system, just a system that gets the organism to reproductive years. After that? Irrelevant. That could point to the challenge of fixing diseases of aging. A good analogy is programming - if the program you came up with uses 8 bit variables, and that limitation causes problems later, well, you're going to have to start from scratch to fix it.
mcv 4y ago
I think that's about excessive sunbathing, which is a thing in certain circles, and certainly was a few decades ago. These days everybody is sitting inside with their games and streaming services, and I think it would do a lot of people a lot of good to go outside a bit more often. Just don't spend it at the baking in the sun all day long at the beach.

And yet lots of dermatologists will tell you to avoid sunlight. The medical community is full of contradictions.

herodoturtle 4y ago

Everything in moderation. EDIT: Except lava.

BiteCode_dev 4y ago
At first I read "except Java"
- blep_ 4y ago
  Lowercase L looks like capital i in some fonts. Clearly it's Iava, the Latin word for Java. Quidquid Iava quondam scribum, omni currum, sed delenda est.
  - gjm11 4y ago
    sed delenda est? sed sed editor consuetus textorum est!
- _Algernon_ 4y ago
  Still true
coding123 4y ago
The floor might be lava.

2muchcoffeeman 4y ago

Until recently not going out much wasn’t a big factor. I’ve been feeling sicker than usual lately. Stupid amount of rain in NSW. Went out yesterday morning on a bright sunny day and suddenly I felt much better.

phkahler 4y ago

>> The medical community is full of contradictions. We added iodine to salt to prevent deficiency, then decades later told everyone to avoid salt. I've found iodine to be a huge piece of the puzzle - certainly not a panacea but one of several go to solutions.

alwillis 4y ago
The American Heart Association recommends no more than 1500 milligrams of sodium per day. Because sodium is being added to packaged and processed foods, the average American was getting way more sodium than the recommended amount. And given the number of obese people and those with hypertension who are salt-sensitive, lots of people were getting way more sodium than was healthy for them.
- deleted 4y ago
  [deleted]
- slaymaker1907 4y ago
  There's also ample evidence that 1500mg is too low. https://www.webmd.com/food-recipes/news/20140402/cdc-salt-guidelines-too-low-for-good-health-study-suggests#:~:text=The%20CDC%20stands%20by%20its,50%2C%20an%20agency%20representative%20said https://www.webmd.com/food-recipes/news/20140402/cdc-salt-gu.... Unlike white sugar which seems to be bad for humans in nearly any amount, salt is an essential nutrient. I suspect it was so demonized as an attempt to deflect blame off of other food additives such as sugar. Low sodium diets may make sense for people with high blood pressure, but it isn't something that everybody should be doing. It seems grossly irresponsible to only highlight the dangers of high sodium while ignoring the dangers of low sodium diets.
  - canucker2016 4y ago
    It's not the total amount of sodium but the concentration of the dose of sodium which will affect your blood pressure. see https://www.youtube.com/watch?v=LbSic4Oo8ME&t=420s https://www.youtube.com/watch?v=LbSic4Oo8ME&t=420s So if your food tastes salty, you should drink more water to dilute the concentration (and hopefully you won't drink so much water to induce hyponatremia - it's a balancing act).

phs318u 4y ago

> The medical community is full of contradictions. Looking after our physical and mental health via modulation of multitudes of interrelated bodily systems and their unique chemistry and biology is a massive multivariate optimisation problem. However, there are reasonable heuristics we can use as a guide for better outcomes, for example, "spend more time in nature" - it's probably no coincidence that doing so is reasonably good for us given we've effectively evolved over many millenia to make the most of "being in nature".

refurb 4y ago

Human biology is made up a number of interacting systems, negative and positive feedback loops and other biochemical pathways. If you focus on individual mechanisms, it looks like contradictions, but as a whole it makes sense. Sunlight is beneficial for vitamin D production, but harmful when it comes to UV damage. Both can be true and not contradictory.

7952 4y ago
And in terms of evolution it makes sense. A lack of vitamin d early in life could effect reproductive success. Skin cancer in your fifties not so much. There just isn't selective pressure.
- refurb 4y ago
  Another factor to layer on as well! As humans developed, evolution didn't have to create the optimal system, just a system that gets the organism to reproductive years. After that? Irrelevant. That could point to the challenge of fixing diseases of aging. A good analogy is programming - if the program you came up with uses 8 bit variables, and that limitation causes problems later, well, you're going to have to start from scratch to fix it.

mcv 4y ago

I think that's about excessive sunbathing, which is a thing in certain circles, and certainly was a few decades ago. These days everybody is sitting inside with their games and streaming services, and I think it would do a lot of people a lot of good to go outside a bit more often. Just don't spend it at the baking in the sun all day long at the beach.