Evolution of man in space

I think that if humans lived on Mars over time there mucsles would weaken due to the lower gravity. I also think that there would be the humans lungs would change due to the differnt atmosphere .

humans lungs would change due to the differnt atmosphere

are you talking about the atmosheric pressure because if like i said in the near future mars was terraformed the air would be breathable so the lungs would'nt have to change to take in all that extra co2

good ideas guys keep them coming

[are you talking about the atmosheric pressure because if like i said in the near future mars was terraformed the air would be breathable so the lungs would'nt have to change to take in all that extra co2

good ideas guys keep them coming

I was refering to human lungs in general. I assume that there will be humans on mars before they terraforme the plant.