Oxygen is essential for our body It is what keeps us alive However certain conditions and factors can cause low oxygen levels ...

In this video, learn about how humans breathe with their lungs and the respiration system. Follow me please class. We're in the gym to look at how humans breathe. Every living thing needs oxygen ...

Inside the spacecraft, the atmosphere can be controlled so that special clothing isn't needed, but when outside, humans need the protection of a spacesuit. Earth's atmosphere is 20 percent oxygen ...

The much-needed ingredient still missing for humans and animals is oxygen. As the atmosphere develops, the composition of the air can be tailored to suit human needs. On Earth, plants make the ...

(European Space Agency via AP) (CN) — If we want to get to Mars, we’re going to need oxygen. Human exploration and colonization of Mars has been an almost perpetual theme of science fiction, but the ...

While the fact that humans need oxygen to survive has been understood for centuries, how the body registers and responds to oxygen was little known prior to the trio's pioneering work. Semenza ...