James_Henry

This is an interesting question.

Though it's not really an answer to that specific question, Jerome Siegel in one paper says: "although animals in the wild are usually healthier that those confined to laboratories and zoos, animals in the wild often have less sleep that those in zoos. Sloths in the lab average 15 h/day of sleep, but they sleep 9 h/day in the wild. Frigate birds in cages sleep 9.3 h, but when flying over the ocean for 10 day periods they sleep 0.7 h/day, without rebound. Fur seals have 80 min of REM sleep/day on land, but in water, where they spend >70% of their life, they average 3 min of REM a day. They have no REM “rebound” when they return to land."

https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8180237/pdf/nih...

We need to put soft mattresses out in nature and document what happens.

If it's a dim LED with just red light or maybe just red and orange then it's probably just as good, no?

Hey, be careful with that criticism there. I don't know that you are in the same field as ninesnines

Be aware that candles cause air pollution that can especially be an issue in homes with poor ventilation.

I don't think he's using the appeal to say that the way pre-industrial people live is optimal. He's saying that maybe 7-9 hours isn't optimal.

People have research modern pre-industrial societies and while they do have fires and nicer sounds than drilling they don't sleep in caves. Also birds are really loud sometimes.

I don't think you'd want to sleep in their circumstances over yours, but maybe you would. I for one like camping quite a bit even though I do usually get much less sleep while camping because I'll stay up late around a fire and then wake up at sunrise. I'm sure that'd change if I were out in the woods for more than a week.

Also, maybe your not-utterly-comfortable utopia is making people, maybe especially males, depressed!

My point is that CBTi isn't what you need if you have sleep apnea or some other treatable disorder as the root of your sleeping issues.

It's also related to how long breastfeeding is continued and to whether you have allergies (or other reasons to start mouth breathing).

I think that sometimes it takes a bit more than discipline, if you are going to really do it right. Sometimes there is an underlying medical issues keeping you from quality sleep (and leading to a delayed sleep phase) and other times it might actually be that, given your genetics or what not, you just don't sleep until later.

I am a fan of "early to bed, early to rise." But for me it's got to be with a PAP machine.

I don't think so, especially not 100 years ago. There were too many good radio programs and before that there were other people to talk to and even alone, there were the stars.

https://www.theatlantic.com/science/archive/2015/10/the-many...

And only a few hundred years ago jaw size supposedly started shrinking leading to increased sleep disordered breathing, at least that's what some researchers claim.

Also, hunter-gatherer societies may get less sleep than the recommended. https://www.theatlantic.com/science/archive/2015/10/the-many... And the San and Tsimane may not have a word for insomnia because they have bigger airways?

I think our friendly internet medical doctor was trying to say that there are some useful principles in CBT-I that could be helpful for a lot of people, which is probably true.

As someone who took way too long fussing with sleep hygiene and the like before finally getting a proper sleep test though, I see the potential danger of telling people what to do first. (Though in my defense, I did get a sleep test a while back and it ended up the sleep tech was trash and I should have gotten a second opinion)

It seems like a lot of papers (the ones I end up seeing the headlines of in places like this) like to try and link Alzheimers to sleep. I think these just get attention because everyone sleeps and almost everyone seems to like to complain about their sleep.

Is this really Walker? I think that Alexey Guzey responded to this blog post though. It doesn't really counter any of Alexey's points.

Does the book give sources for this? And do those sources actually support this claim? It doesn't sound completely correct.

In studies on wake therapy I've seen, there is a percentage that have long-lasting positive improvement from just one night of sleep deprivation.

Wake therapy is a well known treatment for depression, but I have a theory that for some people this sort of thing is a sign of sleep apnea. The reason being sleep breathing is more likely to be disturbed during REM which is more predominant in the later hours of sleep. So skipping those last 1 or 2 REM cycles could be skipping out on, for sleep apneacs, the most stressful parts of the sleep.

I wouldn't start CBT-I without first getting a sleep test, particulary for sleep apnea which can be present without obvious symptoms beyond insomnia or a delayed sleep phase. It's also much more common in young fit people than is often thought.

No, you can let people decide whether they want to move out. Many of them would elect to then sell their houses to developers who would build apartments. Many would choose on their own to add units to their own property. If some people don't like living next to apartments, then they are out of luck though. I don't know if we should expect people to have that kind of say over what their neighbors do with their property.

If it is more desirable, then you build more housing, it should be as simple as that. If you build enough housing, rents won't rise.

Rent control helps current renters in the short term, but it's awfully inefficient and often makes it so there is less development and is thus not very forward thinking (meaning it's not good for people who would like to live there but can't because a lack of housing).

The strategy is to make it really easy to build, then when rents rise, homeowners will sell their homes and build apartments or they will build second units in their backyards or second floors.

Another thing that would help is a land value tax (as opposed to a property value tax) which would promote the use of expensive land for more housing.

Perhaps the weight loss improved sleep breathing. Have you ever had a sleep test before?

For some diseases and conditions it is actually healthy. You of course have to be careful with it.

His math is correct. Also, it's really easy math to verify. It's not surprising either. With the stated yields, you could feed a person. You'd need more for a family.

Of course, the yields could probably be improved in order to get the 140 or so lbs needed to feed a family of 3

It's pretty common and rather annoying

It may make someone eat less overall over time, as satiety seems to be decreased. There is quite a literature on the topic.

It is much more than just saliva.

Could you explain?

> Of note, and correct me if I am wrong, but isn't n30 the minimum for statistical significance? (even though n30 is still laughably low, and id prefer n3000)

It depends on the size of the effect, among other things. Maybe you are thinking about student-t distributions being approximated by normal distributions?

> Insulin is released in response to blood sugar.

This is true, but is only part of the picture. There are other hormones like incretins. There is even what they call the cephalic phase insulin response that occurs before blood glucose concentrations increase. I think it even can occur just from imagining eating food.