Sitting May Be Bad for Your Heart
nytimes.com
nytimes.com
Surely the answer lies somewhere in-between, that we must rest, and we must move, and the amount of each must be relative to each person and activity.
I would prefer to see studies not just trying to prove things bad (we have enough of those), but focuses on what can be proven to be a positive, for example, the optimal mixture of activity and rest for different people and situations.
For example, in addition to "sitting may be bad for your heart" (while necessary and important), I would like to see more of the studies that say "for age group <Y>, occupation <Z>, walking for <N> interval followed by resting for <M> interval increased <X> or <Y> positive benefits".
Since we automated a lot of manual labor, maybe the next big thing is automating sitting all day so we can get up and walk around.
I liked that Black Mirror episode.
10 years time, headline reads: Male office workers sperm counts plummeting, bike-desks blamed.
"These people should be spending more time sitting" says talking head with vague academic credentials slightly linked to the subject matter.
I used to do this when I worked in Manhattan and the 1.5hrs of walking were great. I'll admit this may not be enough exercise for your needs, but it is a good forced way to get very regular exercise, and perhaps part of a good overall plan that incldues a gym as well.
I think the real problem is doing the same thing many hours a day, every day, all year long, for decades. Whether that's sitting, or felling trees, it appears to be equally bad, just in different ways.
We are shaped by evolution for a more varied lifestyle.
So, yes, physical labor, even with full OSHA support, will wear your body out. Alongside all those structural injuries seems to come a penumbra of other illnesses, like heart and kidney disease.
I think the biggest change we made that caught us completely unprepared, was that we've committed ourselves to doing the same thing 8 hours a day, 5 days a week, all year long, for decades. I don't think our bodies evolved for this kind of effort (and I use the word "effort" even when the activity requires a lot of sitting, which is appropriate as the article shows).
If you look at hunter-gatherer societies, their activity is more "bursty", more casual. They go gather stuff for a couple hours, then rest; then perhaps do something else. They go hunt something, which is harder, and then rest a longer time. Etc. There might be periods of intense activity, then longer times of rest, or diminished effort. There are also seasonal variations.
The executive functions behind our foreheads, with their long term planning and their delayed gratification, are really pushing us pretty hard in directions that we're not fully adapted to.
Perhaps something similar happened to our diet. Three meals a day, every day, for decades - that's a very recent change in diet. It used to be a lot more "lumpy" throughout the whole evolutionary past that has shaped us.
Similar for non-life-threatening events. Food input decrease in your area? You barely notice it in the somewhat higher prices, because society is routing food to you from other places. But your hunter-gatherer ancestors would be hungry for days or weeks.
We're better adapted for a harsh, variable environment, and it's funny how our cozy, temperature-controlled dwellings are causing a whole host of new issues.
. . . his original estimate of 12-19 hours worked per week did not include food processing, tool making, or general housework, and when such activities were included he estimated that the !Kung worked about 40-44 hours per week.
How many people do you know that spend 44 hours or less per week working, commuting, grocery shopping, cooking, doing housework, running errands, etc.?
[1] http://quillette.com/2017/12/16/romanticizing-hunter-gathere...
Humans stopped being hunter-gatherers for a reason.
Do keep in mind that evolution hasn't stopped recently, either. There are plenty of civilization-era evolutionary adaptations in the human genome as well. [1]
[1]: https://www.amazon.com/000-Year-Explosion-Civilization-Accel...
True, but I think the differences can still be explained 99% by changes in lifestyle. Genetically we are still overwhelmingly similar - with a few tiny differences like lactose tolerance, etc.
The nutrient-deficient and unvaried diet, poor hygiene/concentration of people, and difficult menial workload from farming gave us very high infant mortality rate, higher disease rate, shrinking height and all sorts of health problems, repetitive strain leading to bodies just completely worn out by age 50, etc.
As people started eating better etc. after getting away from a peasant lifestyle, average height increased by 30cm, infant mortality went way down, life expectancy and quality of life for elderly people went way up, etc.
Our bodies to some extent started reverting to their “natural” shape, but of course being bottle-fed, wearing rigid shoes, sitting inside all day staring at close work from birth onward, a diet with increasing amounts of refined sugar/starch and plenty of alcohol etc. has certainly had its physical effects, and is leaving us with small jaws, dental caries, warped feet, inflexible ankles (unable to squat e.g.), decreasing levels of physical strength, back problems, diabetes, dementia in old age, ....
Our bodies evolved to stay alive long enough for our kids to have kids of their own, somewhere between 30 and 40ish. There is no grand plan, no set lifestyle that will perfectly suit our bodies. Such concepts tough on quasi-religious ideas of grand designs and lost edens. Evolution is a dirty and unplanned mess of factors without any plan. Brushing my teeth every day isn't something my body evolved to handle. The bit of evolution that gave me wisdom teeth had in fact a very different plan. That doesn't mean I should return to the 'natural' lifestyle of not taking care of my teeth. Sitting too much is no doubt bad for our hearts, but there is no idealized 'balance' between sitting and jogging, a form of exercise that didn't even exist until maybe 1800.
According to some dentists I've talked to, this is a consequence of modern diet. Eat a lot of raw carrots and other basic foods, and you wouldn't really need to brush.
The thing is, we dont know yet
So youll have to settle for conflicting studies about coffee and red wine consumption forwarded from your loved ones
I like having a motorized desk, but I don't think I could actually stand all day long, (other than the same breaks someone sitting all day would take). I tried a treadmill desk a time or two, but I don't have the option of using it daily.
Correct me if there is evidence to the contrary, but I don't think humans were designed to sit or stand in one position for extended periods of time, habitually.
Unfortunately I don't see the 8 hour work day going away any time soon, so imo the best option is to alternate sitting/standing and take as many walking around breaks as possible.
Hard evidence? I can't give you that. But look at all of the other mammals out there. Almost all of them spend substantial amounts of time sitting.
Traditional hunter-gatherer societies do almost of their work and food processing sitting down. Every hobbyist flint-knapper works sitting down.
The difference is they don't use chairs. Sitting in a chair is bad - just consider the risk of embolisms on long flights. It removes the need for your body to actively support itself and restricts motion. Anecdote of size one, but for me the biggest help was getting rid of the traditional "throne" chair and replacing it a very broad stool. I can comfortably sit cross legged on it all day. I'm constantly moving and shifting my weight forwards and back, leaning and reaching since I can't just roll a chair around.
It has required making some unusual furniture to use a computer comfortably. Like all of my keyboards are tilted the "wrong" way (away from me) with the front higher than the back. Much easier on my hands and wrists.
Like the horizontally staggered rows of keys, the traditional tilt is a skeuomorphism of a mechanical typewriter. There's no good reason for it to be preserved in electronic keyboards. Ergonomic keyboards are usually tilted the opposite way, with the front higher than the back. This better matches the natural tilt of your hands when you hold them in front of yourself.
It's the variety that's the key difference. We do the same thing (whether that be sitting in a chair, or felling trees in the forest) all day long, for decades. The monotonous schedule seems to be the problem; we're not evolutionarily adapted to it.
Agreed. This works great for me.
It's not just what you're doing for the 8 hours that you're at your desk. A lot of us have arranged our entire lives to require no physical movement.
I just started standing again, but I will be switching between sitting and standing to avoid getting plantar fasciitis again. I do enjoy (and actually prefer) standing. I also noticed my posture improving when I work while standing.
I started running in the past few years but have not paid close enough attention to be able to determine whether or not that has improved the situation. I am also going to start alternating between sitting and standing. I am hopeful that these measures in combination can improve the situation.
I will say the one downside is I'm short and even at the lowest settings the tall rolling chairs sometimes have the foot rest too far away for me. I prefer to rest my feet on the floor.
https://www.runnersworld.com/sweat-science/standing-all-day-...
But that's never followed up with any clear conclusions about the relative dangers of standing vs. sitting. The conversation is left with a dangling implication that maybe standing is just as bad as sitting. Or worse, we're left with a vague, open ended exhortation about how the body is really complicated.
This always annoys the heck out of me. At a bare minimum, we should at least be able to come away from these articles with the conclusion that we shouldn't sit for substantial periods, and that we definitely should throw ourselves into some other alternative, whatever it's complications are.
The risk of injuries from standing should be mitigated however they have to be mitigated, but it we shouldn't let that complication muddy the waters on the more fundamental point about sedentary behavior still being bad even if the alternatives have problems too.
Maybe one of those giant human mouse-wheel things with variable terrain? Tripping would suck, though.
You realize how sedentary you are when you have to use a huge multitouch monitor for... half hour. Your arms will be heavy from just pointing and clicking at the screen in front of you.
This situation is very sad and I'm also looking for alternatives.
Right now what I'm doing is just taking a 5 min break every hour at work and walk to some random part of the complex pretending I'm delivering something or running some errand, just to get me a lil walk and stand time. While they allow me to do that just fine, I know I am also hurting my productivity quite badly because you're never in that kind of flow state where hours pass like minutes.
I want:
- Good productivity. Good time alloted to 'flow' - Not fuck my health in the long term too badly.
Let's share ideas!
As I said, I'm not sure that's a good thing because of the length of time I can sit. I do wiggle a bit but often don't even stand up. I was toying with getting a sand timer or something similar to enforce getting up but not sure how those interruptions would affect my workflow.
Yes, IMO. And I would add to that: it is likely that the lack of a change is also part of the problem, as in lack of change (at not-too-long intervals) between action and non-action (such as walking or moving for the former, and standing, sitting or lying down for the latter). Noticed it in myself - if I walk or move for too long (many hours), or stand or sit or lie down for too long (ditto, except for sleep), I start feeling uneasy or affected in some way (obvious way is to get tired due to the former, but also uneasy due to the latter).
Edited for typo.
Also, adding to above my points in this comment: about lying down for too long, in particular, I've noticed that if I do that, whether intentionally (not often, maybe sometimes due to getting engrossed in reading something interesting), or accidentally / unintentionally (say due to a fever), the body feels uncomfortable after a while, which seems to reinforce my point above about some change being good.
One of our offices just moved to a new building and got (small) motorized standing desks for everyone. I thought I would hate it, but honestly having the option is nice. Plus, its a lot easier to look at something with a coworker standing for some reason. Sadly I'm almost never in that office, I kind of wish I had it all the time.
So true. I think this is because legs are not in the other person‘s way vs sitting.
Cardiovascular exercise is torture for me. But that has no bearing on the utility of it.
I would absolutely not want to be standing for 10 hours a day. But it is nice to be able to stand up for my usual 3-5 hours per day.
Previous workplaces I've been at had the option of an Ikea adjustable height desk for people who would occasionally switch between the two.
“But even slightly elevated troponin levels, lower than those involved in heart attacks, are worrisome if they persist”
If we can measure the right things, we can “treat it”
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HN-TIME:For those tracking, this story was posted 3 times in two days. 12pm EST on a Friday got over 50 upvotes in a hour. Lunchtime EST.
Different strokes for different folks though. I really miss it when I don’t have it.
I mix things up at work personally; about a third of the day standing, a third sitting in a chair, a third sitting on a yoga ball. At this point it seems like you should just hedge and try to about doing any single thing without moving for too long.
(but here's an observational study that says the more you sit around the higher your troponin levels are, and those are bad, so try to walk around more.)
Even though we just said it's probably not going to help.
> The precision machined flywheel silently spins at 14 times your pedal speed. The high inertia of the flywheel helps keep the pedals moving at a smooth pace, sort of like a mini spin bike.
If interested, I made a little tool to gather cadence data on a computer instead of using the provided monitor: https://github.com/lfowles/deskcycle
Gave me the usual prescription: strengthen some core muscles, physical therapy, anti inflammatory meds for a couple weeks, and should be good to go.
Also, however, he prescribed that I read the book Deskbound, by Kelly Starrett.
Reading that book will definitely give you an incentive to not sit for long periods of time.
Ditto workouts for "core muscles".
You can put together a custom standing desk for about $50 nowadays and a $35ish chair is all you need to comfortably sit in an ergonomic way with your standing desk when you want to take a break (no complicated adjustable desk needed, just a standard 29" comfortable stool with a back).
I really like this set up and highly recommend it.
But this one technique where you just lie down on the floor upside down fully flat for 20 mins... my back pain just disappeared and never came back for last 6 months...
?
so now i take it day by day and push myself a few min more each morning ( when my hormones are the highest ) to stand more. i mix it up during the day when i can..and use a fitball for sitting.
Let's all do more standing, drinking water, yoga, and eat more non-processed foods in 2018!!
Perhaps a more controlled study is needed.