Questions tagged [health]

Questions regarding effects on health by activities, prolonged stay, or exposure to environmental elements in space, celestial bodies, or space stations. Predominantly questions pertaining to health of human inhabitants, or astronauts. Questions pertaining to health of other, non-human organisms should include additional tags for further categorization.

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4
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1answer
94 views

How exactly is the balance of minerals handled on ISS with the use of reclaimed (demineralised) water for human consumption?

This question and answers to it contain wealth of information regarding recycling of ISS resources, and water is one of them. Water, recycled from water waste, atmosphere moisture and urine, is ...
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1answer
99 views

How will space suit computers likely be radiation hardened?

Writing this comment inspired the following question: Space suits are critical to life, so if there's a solar storm and the astronaut has received a less-than-lethal dose of radiation, they'll be ...
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What are current epidemiologic standards for space?

In the recent Mars series by National Geographic I've seen that an astronaut dies from a brain tumor because it "was not part of screening". Now could this be real and what are health standards for ...
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72 views

Were there any noticeable immune system changes observed for people staying for long in space?

I have read this article about how difficult is to send ships to another possible habitable world. One aspect deals with the human bacterial companions which might be greatly affected by prolonged ...
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Astronauts' sleeping heart rate on the ISS

On Earth during non-REM sleep a person's heart rate goes down. Does the same thing happen on the ISS, or does the non-REM sleeping heart rate remain close to the heart rate of the astronaut while ...
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78 views

Best (least worst) conditions to “store” an astronaut in a suit for six days?

@GremlinWrangler's answer to How can an Astronaut survive for six days inside a Spacesuit? includes the following: make sure the suit can provide air and water, and adjust the temperature to ...
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61 views

Variable Gravity, how long in each?

Centrifugal force can be used to simulate gravity in space vehicles. Assume the "gravity" in our space vehicle can provide environments ranging from 2 gravities to none (micro), either by changing ...
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1answer
71 views

Space adaptation syndrome compared to BPPV (vertigo)

Has there ever been any discussion comparing the typical SAS experience and benign paroxysmal positional vertigo (when tiny calcium particles clump up in canals of the inner ear). Having recently ...
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3answers
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How do EVA suits manage water excretion?

This answer immediately sparked the question in my mind of how space suits manage water excretion from the person wearing them. I am aware that the astronauts had to wear diapers since one may need to ...
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1answer
253 views

Do astronauts lose potassium faster than terrestrial humans?

According to the Apollo Program Summary Report, astronauts on the longer 15-17 missions have difficulties maintaining dietary potassium levels. Section 8.4 claims Negative nitrogen and potassium ...
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2k views

Why would the Apollo Lunar Module pressure dump (to space?) valve have a bacterial filter?

This answer to Why did they bother closing the hatch on the LM while doing EVA? links to a transcript of Apollo 11 which contains the following (find it there by searching for "radiative"): 109:41:...
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2answers
473 views

How will SpaceX's Starship accommodate its 100 passengers from the effects of micro-gravity?

According to this Wikipedia article, Starship will take on average 115 days (3.8 months) to get to Mars and 150 days maximum (4.9 months). with an average trip time to Mars of approximately 115 ...
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How long were the Apollo astronauts allowed to breathe 100% oxygen at 1 atmosphere continuously?

This answer explains that from the time they suited up "in the Suit Lab before launch" until the time the capsule started depressurizing during ascent, the Apollo astronauts were breathing 100% oxygen ...
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Is the new RGB solid state LED lighting on the ISS ever set to colors other than white?

This answer to Why are these astronauts green? explains the new (now about 2 years old) solid state (LED) lighting modules being added to ISS interior lighting, replacing the fluorescent lights (see ...
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247 views

Has a source of vitamin C ever been successfully grown in space?

Growing one's own food has long been a goal of space exploration. It has the potential to reduce the amount of mass needed for long-term missions. Food has been experimentally grown and eaten on the ...
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Do space suits measure “methane” levels or other biological gases?

A comment below Was “I have the farts, again” broadcast from the Moon to the whole world? links to this humorous video clip of the 1997 comedy movie RocketMan about astronauts on Mars. Personnel on ...
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1answer
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How soon was the Garn scale of nausea established after the senator's spaceflight?

Then-Senator Jake Garn flew on Shuttle mission STS-51-D in April 1985. He developed the worst documented case of space adaptation syndrome, for which an informal unit of space sickness was named ...
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How do astronauts get eye drops into their eyes?

This answer mentions that some astronauts use eye drops to relieve irritation caused by dust and lint in the air. How do they do get the drops in their eyes in microgravity? When I put drops in my ...
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119 views

Aspects of “true deep space environment” on Gateway not thoroughly explored by decades of habitation of nine space stations already?

The ABC News article President Trump prompts state of confusion over space policy with tweet covers POTUS' tweet and NASA director Bridenstine's clarification tweet a few hours later, as well as cites ...
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1answer
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Concepts for interior color of interplanetary crewed spacecraft

I believe saw a documentary, a while back, of concepts for future, interplanetary crewed spacecraft. I thought the discussion included studying the interior colors, and the importance of gradating ...
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1answer
140 views

What makes Space Adaptation Syndrome worse?

Are there any particular movements or activities that exacerbate SAS, space sickness?
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0answers
54 views

Is the radiation exposure in a spacecraft window seat significantly different than other areas of the cabin?

Does an astronaut seated next to a window get more exposure to harmful radiation (and if so, which types of radiation) than an astronaut somewhere else in the cabin at the same time? Related: Is ...
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1answer
559 views

Healing of bruises and internal bleeding in 0g

I heard an unsourced claim about wounds, bruises and internal bleeding healing much worse in 0g conditions than in normal gravity. Is it true? And if so - could you provide a quantitative comparison, ...
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1answer
144 views

Going to the Lunar gateway during the upcoming solar maximum! What will the radiation environment be like?

EarthSky.org's What will the sun do next? says: On December 6, 2018, the Center of Excellence in Space Sciences India (CESSI) reported that two of its scientists have made a prediction for the ...
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How are airborne particulates monitored on the ISS? Are they distinguished at all by size and/or type?

The question What kinds of activities, experiment and, procedures done on the ISS must be done in chambers vented to space? links to and quotes from this answer to the 3D Printing SE question How is ...
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What kinds of activities experiment and procedures done on the ISS must be done in chambers vented to space?

This answer to the question in 3D Printing SE How is 3D printing done in space? says The first big space-specific issue is actually air quality. You can't just open a window to air out the molten-...
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1answer
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Will people living on Mars for several years be able to return to Earth without consequences?

Living without gravity has consequences for the bones and muscles. To counter that astronauts have to do exercise and lifting regularly when they go to the ISS. Are there similar plans to counter this ...
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Artificial Gravity - How much is needed per day?

Has any research been conducted or is anything known about how much time must be spent in 1G per 24 hours in order to preserve good health? Assume that this refers to an extended space-journey. The ...
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1answer
226 views

What psychiatric and psychological tests do people need to pass to become astronauts?

I am writing a short film about an astronaut during re-entry to earth. Part of the conflict I wrote is that the astronaut could not pass the mental tests required. Could anyone tell me any tests ...
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1answer
241 views

What exactly makes it difficult for astronauts to walk immediately after landing after extended stays in space?

Photos and videos of astronauts returning from the ISS being taken out of their capsule show them being mostly lifted out by hand and lowered into chairs, where they rest for a little while, then they ...
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1answer
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Is microgravity “known to” increase bacteria's tendency to acquire foreign genetic material and become metal & antibiotic-resistant?

The RT article Mutant superbugs menace future space station expeditions – NASA ends with: Microgravity is known to increase a bacterium's tendency to acquire foreign genetic material and to become ...
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1answer
410 views

What immunizations (vaccines) are required for astronauts?

Astronauts are often required to get immunizations (incorrectly called vaccines). Which ones are required?
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499 views

Did Charlie Duke actually get the measles?

Deke Slayton: Jim, we've got a problem. I got some blood work back from the lab. Charlie Duke has the measles. Jim Lovell: [Unconcerned] So we need a new back-up. Deke Slayton: You'...
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1answer
188 views

Do astronauts have to use sunscreen?

Of course the space suits can block most part of the radiation, but do the astronauts need to use sunscreen to protect their faces from the radiation passing thought the helmet or passing through the ...
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1answer
210 views

How does this ISS vision-testing instrument work? What exactly is being measured, and how?

This tweet by Surrey Satellite engineer Enguerran Petitfils says Astronaut Serena Auñón-Chancellor Examines Her Eyes via NASA https://ift.tt/2NmEt6k What is this device exactly, how does it work,...
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2answers
345 views

Is telerobotic surgery logistically feasible in orbit?

A recent comment said telerobotic surgery might be used in space, a follow up comment said that multiple minute light delays would complicate it. But I wonder if just the fact that being in orbit, ...
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1answer
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Do Astronauts have their appendix removed?

A recenct article on the BBC news got me wondering about Astronauts in the ISS. technically they are fewer miles from the closest hospital, but the transportation is bit more complex. Imagine that ...
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2answers
330 views

What psychological issues do astronauts experience during spaceflight, caused by spaceflight?

What psychological problems or issues do astronauts experience during spaceflight, that are caused by microgravity, background "white noise" or other unusual environments that astronauts in space are ...
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1answer
142 views

High velocity particle impact on humans in outer space

The Earth is constantly bombarded by matter from space. Is there any risk of high velocity dust particle/micro-object (cosmic garbage e.g.) impact on astronauts while in outer space? What chance is ...
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1answer
356 views

Is Seasonal Affective Disorder a concern for Mars colonists?

We're all discussing effects of Martian sunlight exposure on structures, plants, solar panels, but I don't think I've seen any discussion of its effect on humans. There's a number of effects of ...
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High elbow carrying angle and becoming an astronaut

Would having a high carrying angle (cubitus valgus) disqualify a person from becoming an astronaut?
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1answer
134 views

How soon can beginning of visual impairment due to intracranial pressure be observed?

The spaceflight-induced visual impairment was a serious problem for astronauts remaining for a long time in microgravity. In the early periods after discovery of the condition, the obvious symptoms - ...
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1answer
137 views

What is the mass and power consumption of the COLBERT treadmill?

What do you think is the mass and power consumption of the COLBERT treadmill? Sources are greatly appreciated.
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1answer
389 views

Have astronauts gotten sick on EVA?

In lots of science fiction, people have EVA suits which automatically preform First Aid or administer temporary medical help (such as painkiller injections) so that they can get themselves to a safe, ...
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What are the physical requirements of an astronaut for a Mars mission likely to be?

I realize that there's a lot of speculation involved here, but current actual mission profiles have PT programs and general wellness specifications. It seems like the qualifications would be a ...
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2answers
665 views

Did the Apollo astronauts suffer any health effects from inhaling lunar regolith?

Lunar regolith is nasty stuff - essentially tiny obsidian shards, and the Apollo astronauts had nothing like decent decon on the LEM. Did they have health problems that arose from that? Obviously, ...
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1answer
1k views

What does “masquerading zero gravity” mean?

From the book Packing for Mars: An entire odd universe of mock outer space has grown up here on earth. Capsules that never blast off; hospital wards where healthy people spend months on their ...
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1answer
1k views

How can astronauts on ISS deal with dental emergency?

Tooth ache is one of the more stupid and annoying disruptions to one's week. Dental hygiene can reduce the risk a lot, but only goes so far - for example, inflammation of roots of the tooth, with pus ...
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2answers
171 views

Has NASA ever tested the effects of martial training to alleviate spaceflight osteopenia?

Martial artists who do thing like Muay Thai, kickboxing, and many others strengthen their bones by hitting them in various ways. Generally by kicking a hard object like a tree, by vigorously rolling ...
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637 views

Will we all be in voluntary ketosis on Mars?

The EurekAlert! NASA mission tests ketogenic diet undersea, simulating life on Mars University of South Florida researcher will be in nutritional ketosis during NEEMO 22 mission packs a lot of ...