Could humans survive on a earth like planet with 2x normal gravity?

Question

Without assistance, would it kill you or make you work twice as hard to do basicly anything.

Answer 1

In the short run, certainly yes.

In the long run, we don't know enough to tell the health effects. Could folks live long enough to reproduce and sustain a population? We may never know.

Anyway, I think it will be far, far easier for us to solve the problem of keeping folks alive in 2 g's than it will to solve the problem of interstellar travel.

Answer 2

I don't know if you know the answer to this question and you're just polling us or you don't know and need the answer. If it's the latter, I hope I don't disappoint you. I would think that we wouldn't die but we and everything around us would be extraordinarily heavy. Walking would be nearly impossible. However, if we were born there and our species has always existed on a planet like that, we would function as we do now. Our bodies would be adapted, I guess. And if we went somewhere else where the gravity was as this planet's is, we would probably be extremely strong...like superman. I don't think it would kill us though. Unless, the gravity increased by that much all of a sudden. In that case....curtains.

Answer 3

humans survive earth planet 2x normal gravity

Answer 4

No. In fact, the Earth itself would not survive. If gravity just vanished all of a sudden, then most of the massive objects in the Universe, including the Earth and the Sun, would simply explode into space. This is assuming that gravity is not such an integral part of the Universe that space itself would cease to exist under such circumstances, which is entirely possible.

Answer 5

A healthy person should survive but would be stressed.
If forced to live that way for an extended period, their lives would likely be shortened.
Look at people that weigh over 400 pounds. They walk around, but they gained that weight gradually over years and built up the strength needed to carry that weight.
Astronauts have orbited earth for MANY months in "zero" gravity and suffered when they returned, but recuperated.
If properly conditioned while on a journey to such a place , I think it would be feasible.

Answer 6

Since gravity on earth is only 9.8m/s^2 it is possible that humans can survive on a planet with twice the normal gravity because the gravity on that planet would be about 19.6m/s^2

Answer 7

Yes you could. If you were born here you'd have to train first to prepare for the increased weight and faster falling speeds. If you were born there, you'd never notice it; 64 ft/sec² would be normal to you. Our hearts and muscles would work harder, and we'd live longer. (Yes, longer, unless you emigrated there with a heart condition to start with.)

Humans have trained in centrifuges. 2× normal gravity is not lethal per se. It's just more work to do things than it is here.

Answer 8

Human beings are surprisingly fickle creatures. I would say no because even in zero g the human heart cannot withstand the 6 month trip to mars. Also travelers to that planet would most certainly suffer broken bones and heart troubles immediately after landing as the heart shrinks and bones lose density in space.

Answer 9

They could survive. This is not to say you could transplant a human population to someplace with 2X gravity conditions and expect them to survive. They would have to train first. Any babies born into that environment would become stronger to adapt to it (they'd have to, and their bodies would naturally pursue that course).

Answer 10

yes and no. adults may have a better chance than kids and the elderly but our bodies were designed for our planet. think about it... to just stay standing, you would have to work harder. this would put a lot of stress on your heart and muscles. thats just one part. for males, it would make the scrotum stretch longer and females would have droopy boobies. things like that for a population of people could have weird complications that could only be seen if it really happened. but as far as the "no" part, you could but not as long as if you stayed on earth.