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Questions tagged [health]

For questions on the limits of human survival or on ways to stay alive under extreme conditions. Generally, "evolve new abilities" is not an answer to these questions. These questions are about humans as we are today.

12
votes
6answers
4k views

How would the skin color of white Europeans change over 1,000 years in subtropics?

I am building a country in today’s Argentina (32°-40° latitude) where Europeans would have settled in 10th century. Would their skin color change over that period?
0
votes
2answers
131 views

What is the scientific explanation that 'curing' undead actually harms them? [closed]

I don't understand why curing/healing the undead actually harms them. I always assume that curing is repairing, therefore it doesn't matter if you're undead, if you have damage (i.e wound) you will ...
10
votes
4answers
2k views

Will people suffer from the same diseases on other planets?

Just for curiosity, I am a diabetic and I was wondering if humans would suffer from the same ilness if they were on other planets? Does the climate on other planets help the immune system? Will there ...
0
votes
4answers
180 views

How does a human body react to increasing heat? Can it combust?

Say there's a torture technique that hangs people by metal chains (gruesome, I know; stay with me) and the room slowly heats at a steady rate. (Like boiling a frog in an increasingly hot pot of water.)...
0
votes
1answer
127 views

Surviving *almost* fatal gunshot wounds with minimal medical aid

Okay so I have a world set roughly 50 years in the future. Guns are more efficient by use of liquid ammunition that solidifies when exposed to air (more ammo in a magazine). Bullets are smaller than ...
15
votes
2answers
608 views

Maximum Survivable Time Distortion Factor?

This question is somewhat inspired by the number of "time bubble" questions that have been popping up on the site recently. If a real "time bubble" with a large enough time distortion factor existed, ...
21
votes
8answers
7k views

Ill effects of becoming a statue for 3 months?

So, my villain captures my main character hero's best friend. He likes to keep all of his captured enemies as morbid trophies. Once an enemy is defeated, they are all knocked out, covered in concrete, ...
-3
votes
5answers
287 views

Why would my billionaire have health insurance? [closed]

In my world there is a billionaire. She's one of the richest people in the world, comparable to to the very richest people in our real world. In the country she lives in, there is no significant ...
21
votes
8answers
5k views

Healing/Surgery by teleport

Preface: I'm worldbuilding for a story that has been in my head for ages, it's a kinda SciFi/Fantasy combo. There is one "godlike" being that can alter how physics work in a certain area, and it's ...
-5
votes
4answers
203 views

Could a person extend their life by having a living blood supplied organ donor? [closed]

An old person and young blooded close match person or clone to get some youth back? With a constant flow of fresh blood the older person the donor is not just donating blood but adding virtually all ...
1
vote
1answer
173 views

How Would Seven-League Boots Affect the Body? [closed]

One recurring element of European folklore is a magical item called the seven-league boot. Traditionally, it allows the wearer to take strides of seven leagues per step. The problem with this ...
18
votes
13answers
5k views

How would the (US or world) economy recover if healthcare became unnecessary?

The year is 2019. Someone has taken the most cutting-edge AI technologies to create a machine. It was tasked with studying the DNA humans, and making them indestructible. A virus was created that ...
6
votes
5answers
343 views

Proper care and feeding of prophets, or how to keep a human in strict restraints healthy for as long as possible

Summary: Questioner wants to know the best way to restrain a person in order to prevent self-harm, while minimizing discomfort, facilitating their cleanliness and ongoing education, allowing ...
2
votes
2answers
309 views

Assuming an otherwise Earth-like planet with three times Earth's mass, how long could a healthy 20 year-old survive the heavy gravity? [duplicate]

I am writing a story that involves a planet that has three times Earth's mass. The composition of the planet is rocky and it has an atmosphere that is either breathable or breathable after an ...
-2
votes
2answers
171 views

Can Genetic Engineering Hurt? [closed]

One of the most infamous elements of science fiction is genetic engineering. Numerous times in the Star Trek universe, genetic engineering has been depicted as resulting in trouble and therefore ...
8
votes
12answers
6k views

How to protect culturally bald people from sunburn?

What are some ways that people in a culture where head shaving is common practice could protect themselves from sunburn and other natural elements?
7
votes
2answers
187 views

How would air pressure gradients be affected by controlled gravity?

My current story is set inside a hollowed out dwarf planet (i.e. Ceres) with an artificial gravity generating "mesh" within the shell. This Gravity Mesh can generate a gravitational field that can be ...
40
votes
13answers
9k views

How to control alcohol consumption in my country?

I have a problem with too many men suffering from alcoholism in my country. I tried putting large taxes and limiting the stores that sell alcohol but that led to cottage industry of low quality ...
4
votes
3answers
1k views

Could someone stay unconscious for roughly twelve hours under a set of given conditions while in a desert environment?

I'm quite afflicted with a specific set of conditions I'm trying to figure out. I'm trying to find a way (if there is one) that someone could be unconscious for roughly twelve hours under some ...
1
vote
0answers
44 views

Is it possible for humanity to face extinction at the hands of a pandemic? [duplicate]

Over the course of history, humanity has faced a number of epidemics, some have even lead to the mass death of many people throughout the world. Surely though we are advanced enough to cope with ...
1
vote
4answers
177 views

The time travelling Dentist [closed]

A dentist discovers a machine that allows her to travel back in time and go to Europe in 1500 AD. The machine allows her to go back in time only once (and never to return). These are harsh conditions, ...
1
vote
2answers
205 views

The dangers of eating magical food [closed]

I'm working on a setting in which magical objects can be conjured, but will disappear once the spell that created them is no longer maintained. I'm curious about the specific effects that would happen ...
6
votes
1answer
130 views

Application of a spider poison to skin

So, spider poison is (at least in case for the most of these little guys) a neurotoxin, and large amounts of it entering your bloodstream would bring TERRIBLE consequences for you and your barbeque ...
5
votes
5answers
234 views

How many generations of descendants could a person plausibly outlive?

People live longer nowadays than they used to - but a big reason for that is that our elder care is much better. With a daily pill or two, the body's failing systems can be sustained. In my story, I ...
4
votes
4answers
91 views

Effects of changing environments in humans

Assuming that there's not an issue with diseases spreading around, and that there's little to no issue with food allergies, what would the effects be of taking someone from a tropical climate to one ...
1
vote
1answer
213 views

Megacity Shapes, Episode 3: Plumbing

I have an idea on how many people can work and live inside each of the three chosen shapes. I've received nothing on a reasonable cross-section of each shape. The third episode features an ...
-1
votes
1answer
106 views

Prevent stroke in time travel scenario [closed]

What can be done to prevent a deadly stroke of another person if the MC can time travelling back to 3 days before it. Situation: Time travel is single time only, and 3 days only. The victim is a ...
-1
votes
2answers
216 views

Effect of rapid healing on the body? [duplicate]

In my world, roughly equivalent to present day earth, a secret experimentation program has succeeded in creating a genetically engineered super-soldier, more by accident than skill. No magic or ...
4
votes
5answers
258 views

How much computer memory is needed to store a physical profile of all living people?

My story needs a computer program that has complete physical profiles for all 7 billion of us. By complete, I mean all basic vital signs/functions in real time. (I'm hand-waving how we'd monitor those ...
-1
votes
7answers
260 views

What could humanity do to survive airborn transmitted HIV for as long as possible?

Here's the setting: In the year 2017 a team of scientists working for a terrorist organization create an airborne strain of HIV and release it over New York city. The news goes public IMMEDIATELY ...
25
votes
21answers
7k views

Why do we keep smoking in distant future?

You gotta admit. That roguish guy you just met at space bar looks cooler with cig in his mouth. Not only he always shoots first, but also he manages to do so while puffing awesomely looking clouds of ...
17
votes
10answers
3k views

How do you keep clean on long, pre-industrial journeys?

You're a traveler in a pre-industrial era, temperate climate, grass, trees, rivers, rain, nothing extreme. You're travelling for weeks or months. You take only what you can carry. You may have a ...
12
votes
3answers
1k views

How do underground civilizations effectively manage waste sanitation?

AKA what do underground civs do with their poop? Vast underground networks of caverns, tunnels and caves are a staple adventurers' playground in many classic tabletop RPGs. To make for entertaining ...
3
votes
4answers
187 views

War on candies (or on other threats to modern, affluent people)

I need some societal ills/threats that nowadays are being treated as mostly neglected, but in a near future one could imagine a proper moral panic and attempts to eradicate it (regulate, properly ...
-1
votes
2answers
365 views

There's a limit for how much trauma a human can suffer before he dies/pass out? [closed]

I have a character that makes everything to test improvements for human life (from ingesting chemical substances to resisting to physical trauma) - by using his own body as subject. Limb replacement, ...
-1
votes
4answers
4k views

How long can a person survive solely on his own raw excrement and urine? [closed]

The subject is a healthy male in his twenty, weight is 60kg in the nude and 1.75m tall, he has been fasting for a week and I gave him 1.5 litre of distilled water and fed him 500g of potatoes before ...
33
votes
8answers
7k views

Can a human being live with a continuous stream of blood instead of pulses?

For any reason, a human heart is replaced with a pump that instead of pulses provides a continuous stream of blood. It varies the pressure, as a heart does, as needed. Ignore such technical issues as ...
11
votes
6answers
2k views

Is it possible that a group of people can hear radio frequency (naturally)

In my narrative several people can hear a soft buzzing when it is very quiet. It's almost unintelligible, but discovered it is what's on the radio. The people aren't related, but they may be very ...
4
votes
4answers
542 views

Elemental Healing [closed]

What is the best (most logical or physically practical) way, if it is even possible, to use elemental magic for the purpose of healing ? What element or elements would be manipulated in healing. ...
2
votes
0answers
90 views

The Effects of Magic Provided by an Effective Narcotic [closed]

In a fantasy world, magic exists, however with a strange constraint: to all but a few, it is only attainable through the consumption of specialized pharmaceuticals. Furthermore, the connection, or ...
-3
votes
1answer
139 views

Only Food is Donuts [closed]

Imagine a world where donuts were the only source of food. How long would the average human live? How would that change Healthcare? How many species of doughnut trees would evolve?
27
votes
12answers
3k views

What is the best way to use my two portals?

To avoid being too broad, I'd like to use the portals for purely altruistic purposes (health, environment, safety), and not for scientific or military acheivement (e.g. - not an instant space elevator,...
10
votes
13answers
831 views

How does Santa avoid Heart Attacks from bad cholesterol?

Santa delivers to the homes of the 7 billion people on Christmas night, eating cookies and milk at each of the homes. Provided each home puts out a glass of milk and 3+ cookies, that's a lot of milk ...
4
votes
4answers
302 views

What if smoking suddenly became much more lethal?

A… well, dream… of mine: what if smoking suddenly, overnight, became immediately lethal? To be more specific, this is about “active” smoking; bystanders aren’t affected. To make things more ...
16
votes
4answers
9k views

How else would a two headed human differ from us? [closed]

Due to *cough* hmrnrnrmrn rmrmr *cough*, some humans are born with two heads. This has been happening for at least as long as humans have been making cave paintings and it seems to be nothing to worry ...
7
votes
5answers
931 views

Convention for Healers during a war where some rapid healing is available?

Imagine a war in a standard fantasy world, roughly medieval, most magic is limited, but magical healing exists. Healing comes in three forms: Rare Healers, who are born with ability to do rapid ...
7
votes
4answers
547 views

Psychological effect of rapid magical healing on soldiers during a battle?

Premise Imagine a world in which magical healing exists. A healer may heal wounds very quickly until his energy is exhausted (at peek performance they can heal someone severely wounded back full ...
2
votes
1answer
146 views

What would be the health effects of “bending” the chemical elements in your body?

There is a world in which some of the human inhabitants can "bend" the four elements to their will. For the sake of analogy (and also because it's easier for some of you to relate to) let's say that "...
2
votes
1answer
114 views

Could bringing back the dead be unhealthy (disease)?

In my short story, there is (today) technology to "bring back" the recent dead. Joanna Public dies of exposure and is found a week later in the woods a few miles outside of Portland, Oregon. Luckily ...
8
votes
2answers
257 views

Smallest set of plants to feed a population

What is the smallest set of different crops a (vegan) human population could grow to sustain itself? We'll assume they have an ideal environment, where anything and everything can grow and the ...