Several people asked about bone loss and adaptation to spaceflight - here's how they change ove
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- Col. Chris Hadfield: Several people asked about bone loss and adaptation to spaceflight - here's how they change ove
Several people asked about bone loss and adaptation to spaceflight - here's how they change over a few months.
(Type: photo | Published: 2013-07-10T21:03:09+0000)
[brenda woods] - Wish I could understand
[yoller brown] - Thank you for continuing to teach us.
[alex sears] - Any chance you might post a "dumbed down" version (for those of us who are not doctors/scientists of what each of the lines mean in relation to you, or the average person who might go to space?
What happens with neurovestiblar function with space travel and what does it do back here on earth?
[gary thomas] - I've said this before and I'll keep saying it.... you and your colleagues ( no matter what nationality) are world heroes. You make the world safe for science and wonder. Thank you sir and thank you to your son who kept us all updated with your extra terrestrial movements.
[mohammad m. shaban] - This link should help explain this great representation: http://www.descsite.nl/Publications/Thesis/vanLoon/vanLoon_chapter1.htm
[frank j. cadena] - But in human terms how do you feel sir? I remember when you came back you said that you could feel the weight if your lips when you talked. How do you feel now? Was it a miserable feeling when you were readjusting to gravity?
[germania djimino] - Thank you for risking your life and health for the good of science and for the well being of all human race. Please click like if you agree.
[hollie harlow] - You've become the best of everything to us - a teacher and a friend, a hero and a mentor. Thank you.
[viola boldizsár] - Ap spine and femur T-score data? (start-end or %) thx
[nick lockhart] - You skinny sod :p
[lisë easter donnelly] - Second the request for a "plain English" version, or at least something that explains a bit more about what all those lines mean. It looks really interesting, but I don't fully understand it.
[ingrid meijer yaple] - I'll try to keep my disbelief in check when watching scifi...how 'can' they just do all of these things up in space...will we ever advance to the point of running around on space ships, getting shot at and not exploding? Not to mention not losing any bone density...sheesh
[veronica sullivan-urquhart] - That first month is a roller coaster!
[ciarán ceallachain] - If someone could explain the Y-axis that'd be much appreciated!
[jen bean ryan] - excellent graphic!
[kevin berry] - YIKES! Looks like space travel can be pretty harmful to one's health!
...especially if it exceeds 1.5 months!
[dolores mcphee-fineberg] - Hmm... gotchya!! LOL. Not really. Could you explain in Earthlings terms??
[heather hal] - I wonder if humans can ever truly adapt to weightlessness, or perhaps we need to have artificial gravity to stay healthy. If that is true then how much would be needed and how could this be created for the ISS and other craft. Interesting.
[susan m. alexander] - Whoa, that's really interesting.
[rolande gionet] - Thank you William Strachan. I helped me a bit.
[shannon p murree] - Wow - hope you are well
[kajal bose] - so, one would be severely anemic after 1.5 months?
[ferrer sanchez de movellan] - Very interesting for a biologist point of view.
[yves berteau] - Where is the Molson blood rate ?
[géraldine gauvin- leveneur] - Thanks to you and all these explanations, I better understand now why heroes like you and your colleagues have to be so well trained, and in great health, to withstand such traumatic experiences for your bodies.
[brady parkhurst] - How long does it take the reverse? Is there a "point of no return" where an astronaut experiences permenent changes?
[hernán martínez di puglia] - That's exactly what I thought?
[artery lines] - let's hope one day there's a way to slow radiation injury so people can stay in space longer and not get radiated into retirement
[alicia bjerkseth] - critical care nurse saying "whoa, big changes!"
[justin t robinson] - I don't like the looks of that neurovestibular function at all. Mostly because I don't know what it means yet :P
[dan k nestor] - With all that bone loss how did Captain Kirk maintain his pot belly and his amazing ability to bed beautiful green striped, mad alien women?
[leila crawford] - I don't really understand the graph but looks like a persons system really takes a real ass kicking while in space wouldn't do to live there for too long or the red blood cell mass and the other things such as bone and calcium metabolism etc and so on look to be really harmful as well as the radiation effects seem to get higher the longer you are there too if I am reading the graph correctly - ?????
[luisa cywinski] - Or at least give it to us in layman's terms. I'm guessing you lose bone and muscle mass.
[travis rossman] - Red blood cell mass looks scary
[pat wokoma] - A natural born educator. :)
[nancy j. way] - I suppose the ultimate question is... are you a different Canadian now that you have returned to earth?
[alix meyer] - do a google search, y'all.
[lilian casley] - Now, I'm going to google all these lines...to see if I can make head or tail of them. The Neurovestibular Function, increases and drops sharply!! Thank you for posting.
[juanita mcdonnell] - i get the gravity of...glad you have good health Care xo
[becky loy] - Amazing loss over a few months---if I'm reading the graph correctly that is. Wow. Kirk
[laura street desroches] - Cool. But maybe you can do a video talk of what it all means...
[m javaid bokhari] - The first month looks pretty rough to go through the process :p
[marco froeder] - thx, i was guessing how live in space affect the human body when i read about you first run after come back to earth , this graphics answer my questions. :)
[marilyn g cardinal] - Does this mean that you age faster, due too the drastic changes in your body? How old do you really feel? What a sacrifice for man kind!
[andrija dimitrijevic] - what exactly does clinical horizon represent..... peak body performance or danger zone?
[rose-claire chapuis] - Please take good care of yourself!
[gillian setterfield] - scary, we are not made for export
[liz bryant] - I'm curious as to how long someone could live in space before their bodies begin to fail.
[judy gores] - The human body is very dynamic ... good luck in your rehabilitation :)
[rena lefcourt] - Pardon my ignorance but what does it all mean?
Col. Chris Hadfield: Several people asked about bone loss and adaptation to spaceflight - here's how they change ove - 50th Comments
[kris lee] - Chris: Can you please explain this in layman's terms in your new book, which I've pre-ordered :) http://pages.email.randomhouse.ca/page.aspx?QS=38dfbe491fab00ea9040774b1a5aba422f39d501c4be3382cecc16929b06082c
[ben grismer] - Thank you for the share!
[elizabeth dowling] - They should also test liver function and other functions on a graph. My husband's liver failed due to cancer (cause of his death), and it is a real concern how the body chemistry adapts to conditions in space. That radiation effects line is also very disturbing. Were those the lines in the "Space Oddity" video?
[mary nichol] - Oh my! I am not sure how to read this chart, but it seems that a lot of functions decrease over time. Bone and calcium metabolism increases over time. Does that mean your body is bsorbing your own bone and calcium??
[lisa lauer] - Wow! Incredible! Thank you!
[vanessa patterson] - That's really interesting! Do you have any articles I can read on this?
[michael f. mcdougall] - You can build up Bone density with a Canadian invention called the "Wellness Belt". I have been wearing one for 3 yrs now and it has made a huge difference in my health. Invented by a Canadian Chiropractor named Dr. Craig Curphey in Barrie, Ontario.
[bob wheaton] - Isn't this terrifying? How soon does the system restore these losses?
[dave marsden] - Is this because of lack of gravity? Is that a factor in this?
[kristine arsenault] - Basically if you are not putting weight on your bones by standing, you will lose bone density and therefore strength and risk of breaking increases. Compare it to someone confined to a wheelchair. They are losing bone mass by not putting pressure on their bones to allow strengthening. Hope this helps a bit.
[carla humphries binai] - wow, the Red Blood cell mass is frightening. you're my hero.
[anita maurice] - This all happens because of no gravity?
[ricky ryan] - Basically, space turns you into a wimp! ;)
[varga kr] - horizontal scale is the months passed since returning, vertical is the range of change in the particular area :)
[faye tetford] - Interesting stuff! :)
[alton harewood] - Long term deep space trips look to be off the agenda then!
[burl hamm] - Fantastic explanation. Thank you
[suzanne shier] - are the changes the same in men and women? Also does age play a factor? How much vitamin D do astronauts take in space? and do you continue with the same amount back on earth? Thanks for sharing, so interesting and such an important area of research that is needed to keep astronauts in space longer.
[ula majka kuczyńska] - IT IS SO USEFUL to young SF authors!! God Bless you!!
[florina mihaela] - The explanation to this graph is simple, whole body system is going from the best to the worst, the longer time you stay in space the nearest to death. A very BIG THANK YOU Col. CHRIS HADFIELD, for putting your life in danger for whole humanity, for allowing us to share your experience. BIG PEOPLE like YOURSELF will live forever in our hearts, well deserving our prayers , blessings and love <3 xxx
[wulf warren] - I do like the scientific facts, I suppose you can't look at this with complete detachment. My bones have a brittle hollow honeycombe where they should have marrow making it nigh on impossible to absorb calcium, so would they remain the same during space travel or not? I've been curious of this for years...
[elizabeth jeane sproule hannigan] - I knew that - not. :-)
[karen watson] - I live at 8500' and have problems with my legs and leaky veins.
[amanda smuts] - So NASA has their work cut out for them, clearly one of the most important discoveries of this age will be the generation of false gravity. Or else how are these one way trips that are in the planning going to be possible?
[jay greene] - No wonder you are so pleased to be able to run again. As everyone says: thank you for the sacrifices you have made x
[giovanni cimmino] - Col. Chris Hadfield, few years ago (it was 2009) we led an experiment (on-board the ISS) called Mice Drawer System, aimed at understanding bone loss. Merge data would be awesome...
[josh day] - Hey I've seen this. My professor showed this to us!
[yves letellier] - Wow ! some changes in the body !!! We are not made for space :(
[jey em] - It's interesting theme
[lin neufeld] - Thanks for posting the info. Same Q as above, how long to recover and is recovery 100%?
[wendy hinemoana kearns] - Cool wheres this from?
[meg meltz] - That's bad stuff! How long does it take to recover?
[christopher curtis] - Ahh that explains it!
[mary hughes-bass] - Wonder if your O2 sats decreased with the decrease in rbc mass ? Did you notice any difficulty with breathing especially after exercise?
[sacha pessin] - No any french people to explain ? :)
[mary hughes-bass] - That's incredibly interesting. I am wondering if they are considering giving medications in the future to prevent this. Wonder why they don't now and their rationale. Thank you for posting this. So much to ponder over.
[liz waye] - Rather drastic! Good to have you back!
[france laframboise] - The neurovestibular function initial roller coster must have been sooooooo difficult!? Merci pour ces données très intriguantes!
[john robertson] - I'm confused about the meaning of the Y axis.
[patricia startek] - Wow! Hope you heal well.
[rafael padron] - Thank you so much for your this information!!!
[fleur govaerts] - I have been concerned about this in regards to YOU- Keep Well Col.
[lorraine folkes] - Wow, that is amazing! Are the calcium levels up because the body takes the calcium from the bones? At this rate, how long would one be in space before becoming a jelly fish like creature? Without gravity, there is not much need for bones, I suppose. Interesting, sir. Wish I could figure it all out.
[susana zabalgoitia martin] - Thanks for sharing!
[luke nilsen] - so is this a control without using the excercise machine to counteract/keep it within tolerable-recoverable limits?
[mircea-vlad radulescu] - Why do most peak and then diminish?
[maud moullec] - I first saw this in a lecture by Scott Madry at ISU. Thank you for teaching us!
[joe brindle] - Captain Kirk's ship had artificial gravity Dan K.
[lois cole-young] - Thanks for sharing.
[kathleen foster] - Wow! An amazing change in function and fluid metabolism!
Col. Chris Hadfield: Several people asked about bone loss and adaptation to spaceflight - here's how they change ove - 100th Comments
[aine nimhurchu] - does not look so good to me....... take care
[seamus broderick] - man.. we're not all astronauts xD
[navarra lee good] - Well, that was an interesting read!
[david milligan] - How will we ever overcome this problem for long term space exploration Cmdr?
[bill proctor] - Sorry, its just another graph to me
[kimberly cote] - Interesting to see how many factors adapt, but not the bone and calcium metabolism.
[maryellen grimaldi mannting] - what is the reason for the increase in bone and calcium metabolism?
[paula large] - Seems like a total blood transfusion would help
[paula large] - Seems like maybe a total
[david bailey] - Wow.... hey, Colonel... What do you think about the Mars One Project? I signed up, but didn't pay my $38.00 fee yet because I don't want to pay for something and then they say no. So, I'd like your opinion, Sir. =)
[james foster] - What worries me is that radiation line.
[jan lefave] - Wow! The Red blood cell mass really drops so one would become anemic, yes? All I know is that red cells stick to oxygen and its carried to all parts of the body, so because of weightlessness it must be hard for it to get anywhere like the bones, right? Well, makes sense in my head but I really don't know.
[nicole beaudet] - Merci pour les infos ...X♥X
[simon chong] - from space to earth moment?
[david barnes] - So excited about going to the Kennedy space centre from Britain in August this year :) as a serving Member of the British armed forces I don't get excited about much, but this I could almost pop. :)
[isabelle scanga leo] - Wow... thks for all the info.
[natnael axbxuxyxex] - I need help on what's on the Y-axis?
[mj cooke] - Thanks for the graph - so much easier to digest than paragraphs of numbers. Not that I really understand the details (!) but that red blood cell mass drop looks very unhealthy. I wonder, how long will you need to recover to pre-trip levels?
[emelie pineo] - Thanks so much for sharing this Col. Hadfield. It would have been neat to have this to show my grade 8 Science class! I was thinking radiation effects might be more severe.
[fazie b] - I see the Ratiation effects continue to rise.. how does this compare to say Chernobel (sp) effected people..
[vulcan dax] - thanks for sharing!
[norman yee] - Fascinating trending and evidence of the remarkable adaptation of the human body (within limits). Great research (and hope) for our future of longer term dwelling in space. Good work Col. I trust you work with Dr. Doug Hamilton on this too.
[diane brereton] - Thanks for the info. Does it worry you about the cardio Vascular function going down and is it temporary?
[jensivar rooy] - hallo mr hadfield - good for you to start running again - i happen to know a little about that as well - thanks for the upload sir and have a nice day
[jacqueline mark] - Sorry; forgot the rapid changes in all at time of departure.
[jacqueline mark] - Rapid declines until adaptation. Continual declines in three of six(red, green, gold). Equalization of two(black, blue). Rapid increase in one(yellow). Gradual deadly increase in one(purple). Did I "nutshell" it correctly, mostly for my own edification?
[gerd harders] - i'd always loved weird graphics
[barbara fleming] - Didn't realize drop in RBCs. Was there shortness of breath?
[filip tahir] - If i understand this correctly the duration of time in space is shown on the x-axis and the effect of "time in space" on the different body funktions and cellmasses on the Y-axis.
[cody crewson] - Is the radiation effect based on the linear no-threshold model (LNT) for accumulated dose calculations? Or is it a high enough dose rate to not matter (be above where threshold and LNT models overlap)
[nilton cezar pereira] - quanto mais tranquilo, menos energia sendo gasta. :)
[rebecca kerr] - Thank you ! I was having a bone scan yesterday and talking to the tech about you and what you went through while in space - she made me think I was nuts because you "wouldn't get radiation as you were past the sun" I did not want to argue with her about where you were (maybe she thought you were going to mars?) or that indeed you had radiation exposure...wish I had this with me yesterday! Thanks for sharing today though :)
[christopher landorf] - I don't understand the scales on the left.
[paul mignault] - very interesting,Thanks
[ronan flynn] - Interesting that radiation us constant and increasing. I'd assume that would be the biggest hurdle to permenant life in space
[allie atter] - I'm an exercise therapist and seeing this graph just made my day, I love seeing how the body adapts in different environments. That being said, that looks like a lot for a person's body to go through. Hope your recovery is going well, commander Hadfield.
[terri trewin] - Thanks William Strachan, very helpful! :)
[janet marshall kimble] - How much time is estimated to return to normal levels?
[edd mewborn] - I VERY vaguely understand what the graph is representing. My intergences hurt :(
[richard hart] - I now know that the "clinical horizon" is the point, above which, disease symptoms begin to appear. I assume the X-axis is in months,, but what is the y-axis?
[cameron fraser] - If I am understanding correctly the first 2-3 weeks are the most difficult with things largely settling down 6 weeks in, but for radiation effects which continue, and the impact of bone density loss. Correct? close?
[allen devitt] - this just shows how things in the body stabilize over time in space. 1*g is on earth, m*g is in space.
[andreas borby bay] - Thats very interesting thanks for sharing.
[larry bliss] - What bothers me is the radiation effects line keeps going up...
[paula vanderwal] - very interesting
[lori millian] - Thanks for continuing to post things and educate us!
[renee tivy-scott] - It appears that you gave a lot more than time. I think of the dangers of going into space, being in space, but do not think of the physical effects.
[bruce lane] - Wow. That's pretty rough on the body. I'm assuming there's no flattening out of radiation effects either.
[tracy spencer- bromage] - I find this stuff fascinating.thanks
[alexander melendez] - Soo, we crumble without gravity
Col. Chris Hadfield: Several people asked about bone loss and adaptation to spaceflight - here's how they change ove - 150th Comments
[deb sinclair darwish glenfield] - Col. Hadfield can you come to my house or meet me at a quaint coffee shop and help me by explaining this graph to me? and maybe demonstrate where bone density affect is....? hahaha sorry
[beck tarkowski] - I don't claim to understand the chart. Sorry.
[judy fox] - I'd like to see this extended beyond 6 months. The effects of space are dramatically detrimental to our bodies! Do we know at what point in time our bodies begin to normalize?
[julie cheatham robertson] - I did not even try......but I laughed hard when I saw it.
[dan deadcell dnb] - A simple chart indeed. It's a strange area now knowing the effects and changes on the body just from this graph.
[bonnie teet] - Looks good, but I can't grasp it. I understand bone loss .....I have it, but it has never really been explained to me in layman's terms.
[jason johnson] - Y axis time in months
[stephen gray] - Probably not a good idea to spend time in zero grav then. :)
[jason johnson] - Fascinating, how come radiation effects are linear when it varies with sun activity?
[kari smith nee bednarski] - So did you use one of those vibration machines that are apparently to help with bone density?
[claudette lutes] - Wow! That's CRAZY...
[brian joseph p] - basically you're flat lining on everything lol
[zach richardson] - your posts are always awesome
[albert ralph] - Thanks Chris. Is there a corresponding chart of the recovery upon return to earth?
And how does this bode for Mars Missions, say of the "Case For Mars" scenarios?
[helen ollerenshaw] - Thank you. I was very concerned about you bone loss. At our age it ain't easy to get back
[suraiya sayed-tohamy] - Awesome delivery of knowledge !
[judy davidson] - Thank you for always teaching us , you wisdom is welcoming <3
[greg lejeune] - English Translation? :)
[alice lundrigan] - This is so interesting!
[wachakosh awashish] - More info: http://www.medicalnewstoday.com/releases/37930.php
[wachakosh awashish] - Bone density would be of more concern for reason of osteoporosis. Most astronauts seem to 'shrink' in terms of their skeletal frame from before photos (at the start of their career, then toward the end). *just an observation.
[ann rendell] - Astronauts are very brave people to undergo all these changes for the sake of science. Thank you.
[marie-claire rackham-mann] - Wow If I have understood this correctly, I'd say that we are not designed for space travel !
[tammy harrington-leroux] - It's amazing what your body goes through. Thank you for subjecting yourself to this to help us learn. :)
[leticia collandra] - Thank you for sharing it to us...
[lori johnson] - Not good. It may be that is why you had to retire. Not enough bone structure left for jet piloting. They have to find a way to keep the body better in weightlessness.
[arnoud ten haaft] - Those effects are dramatic!
[djebbar asma] - I hope I take my chanse it's really my univers I hope I can go to visit space with you and photograph more pictures it's my dream
[stéphane villeneuve] - That's great how a group of people can understand something that was unexplainable at first. Cool!! ;)
[karri grexton] - That's very fast
[judy brucculieri] - kinda proves you can bring your health back...At the Y..when I was trying very hard....a trainer said ...Dont worry your Body Will forgive yu dont give up..
[de reditu suo durand] - really instructive
[miles winslow] - And thanks for putting it in a clear concise graph that we will all understand!
[ken wayne white] - Too bad most people get dizzied by what they try to see and interpret here. lmao